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                                                                    EXHIBIT 25.1

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                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549


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                                   FORM T-1



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                  STATEMENT OF ELIGIBILITY AND QUALIFICATION
              UNDER THE TRUST INDENTURE ACT OF 1939, AS AMENDED,
                OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE
Check if an application to determine eligibility of a trustee pursuant to
Section 305(b) (2)
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                          FIRST UNION NATIONAL BANK

             (Exact name of Trustee as specified in its charter)


                                                         
230 SOUTH TRYON STREET, 9TH FL.
CHARLOTTE, NC                               28288-1179           22-1147033
(Address of principal executive office)     (Zip Code)           (I.R.S. Employer Identification No.)


                       Monique L. Green (804) 343-6068
                800 East Main Street, Richmond, Virginia 23219



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                              CIENA CORPORATION
             (Exact name of obligor as specified in its charter)


                                                              
Delaware                                                                23-2725311
(State or other jurisdiction of incorporation or organization)    (I.R.S. Employer Identification No.)


1201 Winterson Road
Linthicum, MD                                                     21090
(Address of principal executive offices)                          (Zip Code)

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                         % Convertible Notes due 2008

                     (Title of the indenture securities)


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1.      GENERAL INFORMATION.
   
        (a)    The following are the names and addresses of each examining or
               supervising authority to which the Trustee is subject:

               The Comptroller of the Currency, Washington, D.C.
               Federal Reserve Bank of Richmond, Richmond, Virginia.
               Federal Deposit Insurance Corporation, Washington, D.C.
               Securities and Exchange Commission, Division of Market Regulation, Washington, D.C.

        (b)    The Trustee is authorized to exercise corporate trust powers.


2.      AFFILIATIONS WITH OBLIGOR.

               The obligor is not an affiliate of the Trustee.


3.      VOTING SECURITIES OF THE TRUSTEE.

               Response not required.
               (See answer to Item 13)


4.      TRUSTEESHIPS UNDER OTHER INDENTURES.

               Response not required.
               (See answer to Item 13)


5.      INTERLOCKING DIRECTORATES AND SIMILAR RELATIONSHIPS WITH THE OBLIGOR OR UNDERWRITERS.

               Response not required.
               (See answer to Item 13)


6.      VOTING SECURITIES OF THE TRUSTEE OWNED BY THE OBLIGOR OR ITS OFFICIALS.

               Response not required.
               (See answer to Item 13)


7.      VOTING SECURITIES OF THE TRUSTEE OWNED BY UNDERWRITERS OR THEIR OFFICIALS.

               Response not required.
               (See answer to Item 13)


8.      SECURITIES OF THE OBLIGOR OWNED OR HELD BY THE TRUSTEE.

               Response not required.
               (See answer to Item 13)

9.      SECURITIES OF UNDERWRITERS OWNED OR HELD BY THE TRUSTEE.





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               Response not required.
               (See answer to Item 13)



10.     OWNERSHIP OR HOLDINGS BY THE TRUSTEE OF VOTING SECURITIES OF CERTAIN AFFILIATES OR
        SECURITY HOLDERS OF THE OBLIGOR.

               Response not required.
               (See answer to Item 13)


11.     OWNERSHIP OR HOLDINGS BY THE TRUSTEE OF ANY SECURITIES OF A PERSON OWNING 50 PERCENT
        OR MORE OF THE VOTING SECURITIES OF THE OBLIGOR.

               Response not required.
               (See answer to Item 13)


12.     INDEBTEDNESS OF THE OBLIGOR TO THE TRUSTEE.

               Response not required.
               (See answer to Item 13)


13.     DEFAULTS BY THE OBLIGOR.

               A. None
               B. None


14.     AFFILIATIONS WITH THE UNDERWRITERS.

               Response not required.
               (See answer to Item 13)


15.     FOREIGN TRUSTEE.

               Trustee is a national banking association organized under the laws of the United States.


16.     LIST OF EXHIBITS.

        (1) *Articles of Incorporation.

        (2) Certificate of Authority of the Trustee to conduct business. No
            Certificate of Authority of the Trustee to commence business is
            furnished since this authority is continued in the Articles of
            Association of the Trustee.

        (3) *Certificate of Authority of the Trustee to exercise corporate trust powers.

        (4) *By-Laws.


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        (5) Inapplicable.

        (6) Consent by the Trustee required by Section 321(b) of the Trust
            Indenture Act of 1939 as amended. Included at Page 5 of this Form
            T-1 Statement.

        (7) Report of condition of Trustee. Included at Page 6 of this Form T-1 Statement

        (8) Inapplicable.

        (9) Inapplicable.


        * Exhibits thus designated have heretofore been filed with the
        Securities and Exchange Commission, have not been amended since filing
        are incorporated herein by reference (See Exhibit T-1 Registration
        Number 333- 76965).

















                                  SIGNATURE

        Pursuant to the requirements of the Trust Indenture Act of 1939, as
amended, the Trustee, FIRST UNION NATIONAL BANK, a national banking
association organized and existing under the laws of the United States of
America, has duly caused this Statement of Eligibility and Qualification to be
signed on its behalf by the undersigned,





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thereunto duly authorized, all in the City of Richmond, and in the Commonwealth
of Virginia on the 2nd day of February, 2001.


                                                   FIRST UNION NATIONAL BANK
                                                   (Trustee)




                                                   BY:
                                                      -----------------------





                                                               EXHIBIT T-1 (6)

                              CONSENT OF TRUSTEE

            Under Section 321(b) of the Trust Indenture Act of 1939 and in
connection with the issuance by Ciena Corporation % Convertible Notes due
2006, First Union National Bank, as the Trustee herein named, hereby consents
that reports of examinations of said Trustee by Federal, State, Territorial or
District authorities may be furnished by such authorities to the Securities
and Exchange Commission upon requests therefor.


                                                   FIRST UNION NATIONAL BANK




                                                   BY:
                                                      -----------------------


Dated: February 2, 2001



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R E P O R T  OF  C O N D I T I O N


        Consolidating domestic subsidiaries of the

        First Union National Bank       Charlotte
                     Name of Bank                       City


        in the state of North Carolina, at the close of business on September
        30, 2000, published in response to call made by Comptroller of the
        Currency, under title 12, United States Code, Section 161. Charter
        Number 02737 Comptroller of the Currency Southeastern District



Statement of Resources and Liabilities


ASSETS




                                                                         Thousands of dollars
                                                                                                             
       1 Cash and balances due from depository institutions:
          a.  Noninterest-bearing balances and currency and coin.............................................   7,814,000
          b.  Interest-bearing balances......................................................................   4,091,000

       2 Securities:
         a. Held-to-maturity securities......................................................................   1,556,000
         b. Available-for-sale securities....................................................................  48,764,000

       3 Federal funds sold and securities purchased under agmts to resell:                                     2,165,000

       4 Loans and lease financing receivables:
         a. Loans and leases, net of unearned income.................................     132,642,000
         b. LESS: Allowance for loan and lease losses.................................      1,900,000
         c. LESS: Allocated transfer risk reserve.....................................              0
         d. Loans and leases, net of unearned income, allowance, and reserve................................. 130,742,000

       5 Assets held in trading accounts.....................................................................  12,912,000

       6 Premises and fixed assets (including capitalized leases)............................................   2,928,000

       7 Other real estate owned.............................................................................     107,000

       8 Investments in unconsolidated subsidiaries and associated companies.................................     250,000

       9 Customers' liability to this bank on acceptances outstanding........................................     967,000

      10 Intangible assets...................................................................................   2,889,000

      11 Other assets........................................................................................  12,662,000

      12 Total assets........................................................................................ 227,847,000





LIABILITIES

                                                                                                           
      13 Deposits:
          a. In domestic offices............................................................................. 130,675,000
            (1) Noninterest-bearing........................................................20,065,000
            (2)   Interest-bearing........................................................110,610,000
         b. In foreign offices, Edge and Agmt subsidiaries, and IBFs.........................................  12,305,000
            (1) Noninterest-bearing..........................................................................      39,000
            (2) Interest-bearing.............................................................................  12,266,000

      14 Federal funds purchased and securities sold under agmts to repurchase:                                23,476,000

      15 a. Demand notes issued to the U.S. Treasury.........................................................   2,077,000
         b.Trading liabilities...............................................................................   6,979,000

      16 Other borrowed money:


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          a. With a remaining maturity of one year or less...................................................  16,205,000
          b. With a remaining maturity of more than one year through three years.............................   4,039,000
          c. With a remaining maturity of more than three years                                                 2,075,000

      17 Not applicable

      18 Bank's liability on acceptances executed and outstanding............................................     975,000

      19 Subordinated notes and debentures...................................................................   5,993,000

      20 Other liabilities...................................................................................   7,567,000

      21 Total liabilities................................................................................... 212,366,000

      22 Not applicable


EQUITY CAPITAL


                                                                                                           
      23 Perpetual preferred stock and related surplus.......................................................     161,000

      24 Common stock........................................................................................     455,000

      25 Surplus.............................................................................................  13,306,000

      26 a. Undivided profits and capital reserves...........................................................   2,381,000
         b. Net unrealized holding gains (losses) on available-for-sale securities...........................    (817,000)

      27 Cumulative foreign currency translation adjustments.................................................      (5,000)

      28 Total equity capital................................................................................  15,481,000

      29 Total liabilities, limited-life preferred stock, and equity capital
          (sum of items 21and 28)............................................................................ 227,847,000



         We, the undersigned directors, attest to the correctness of this
         statement of resources and liabilities. We declare that it has been
         examined by us, and to the best of our knowledge and belief has been
         prepared in conformance with the instructions and is true and correct.



                                                    
         Directors                                     I,   Gary R. Sessions
                                                       ----------------------
         G. Kennedy Thompson                                  Name
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         Mark C. Treanor                               Vice President
         ---------------                               ---------------
         Robert Atwood                                      Title
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                                                       of the above-named bank do hereby
                                                       declare that this Report of Condition
                                                       is true and correct to the best of my
                                                       knowledge and belief.

        report.condition 9/30/00




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