FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * Aquino Michael Gerald   2. Issuer Name and Ticker or Trading Symbol CIENA CORP [CIEN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SR VP. Worldwide Sales (Last) (First) (Middle) C/O CIENA CORPORATION, 1201 WINTERSON ROAD 3. Date of Earliest Transaction (Month/Day/Year) 10/02/2007 (Street) LINTHICUM,, MD 21090 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 10/02/2007   M   1,897 A $ 16.87 39,716 D   Common Stock 10/02/2007   M   4,583 A $ 17.43 44,299 D   Common Stock 10/02/2007   M   1,785 A $ 25.06 46,084 D   Common Stock 10/02/2007   M   11,428 A $ 19.95 57,512 D   Common Stock 10/02/2007   M   1,083 A $ 16.52 58,595 D   Common Stock 10/02/2007   M   8,928 A $ 31.43 67,523 D   Common Stock 10/02/2007   M   5,357 A $ 22.96 72,880 D   Common Stock 10/02/2007   M   2,142 A $ 31.71 75,022 D   Common Stock 10/02/2007   M   12,856 A $ 30.1 87,878 D   Common Stock 10/02/2007   S(1)   50,059 D $ 42.5082 (2) 37,819 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Underlying Securities (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Non-Qualified Stock Option (right to buy)	$ 16.52	10/02/2007		M			1,083	(3)	06/10/2015	Common Stock	1,083	$ 0	917	D
Non-Qualified Stock Option (right to buy)	$ 16.87	10/02/2007		M			1,897	(4)	10/26/2014	Common Stock	1,897	$ 0	781	D
Non-Qualified Stock Option (right to buy)	$ 17.43	10/02/2007		M			4,583	(5)	10/26/2015	Common Stock	4,583	$ 0	5,417	D
Non-Qualified Stock Option (right to buy)	$ 19.95	10/02/2007		M			11,428	(6)	12/10/2014	Common Stock	11,428	$ 0	0	D
Non-Qualified Stock Option (right to buy)	$ 22.96	10/02/2007		M			5,357	(6)	05/31/2014	Common Stock	5,357	$ 0	0	D
Non-Qualified Stock Option (right to buy)	$ 25.06	10/02/2007		M			1,785	(6)	05/18/2014	Common Stock	1,785	$ 0	0	D
Non-Qualified Stock Option (right to buy)	$ 30.1	10/02/2007		M			12,856	(6)	08/20/2012	Common Stock	12,856	$ 0	1	D
Non-Qualified Stock Option (right to buy)	$ 31.43	10/02/2007		M			8,928	(7)	06/01/2016	Common Stock	8,928	$ 0	19,643	D
Non-Qualified Stock Option (right to buy)	$ 31.71	10/02/2007		M			2,142	(6)	11/19/2012	Common Stock	2,142	$ 0	0	D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Aquino Michael Gerald C/O CIENA CORPORATION 1201 WINTERSON ROAD LINTHICUM,, MD 21090			SR VP. Worldwide Sales

Signatures

By: Erik Lichter For: Michael G. Aquino		10/03/2007
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Sales were effected pursuant to Rule 10b5-1 trading plan dated October 2, 2007.
(2)	Reflects the average sale price of the total shares sold. Actual sales prices are as follows: 300 shares at $42.56; 12,400 shares at $42.55; 2,033 shares at $42.53; 4,000 shares at $42.52; 5,268 shares at $42.51; 14,800 shares at $42.50; 2,299 shares at $42.49; 300 shares at $42.48; 3,000 shares at $42.47; 5,559 shares at $42.45; and 100 shares at $42.28.
(3)	Option vests at a rate of 25% on June 30, 2006 and 2.084% for each of the 36 months thereafter.
(4)	Option vests at a rate of 25% on October 31, 2005 and 2.084% for each of the 36 months thereafter.
(5)	Option vests in equal monthly amounts over 48 months beginning on November 1, 2005.
(6)	Option is fully vested.
(7)	Options vest in equal monthly amounts over 48 months beginning on June 1, 2006.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.