SEC Form 3

FORM 3

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

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1. Name and Address of Reporting Person* O NEIL ROBERT A (Last) (First) (Middle) 1201 WINTERSON ROAD (Street) LINTHICUM MD 21090 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 11/19/2003	3. Issuer Name and Ticker or Trading Symbol CIENA CORP [ CIEN ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Senior Vice President, DNG	5. If Amendment, Date of Original Filed (Month/Day/Year) 12/08/2003
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	419,567(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (right to buy)	06/16/2004(2)	06/16/2003	Common Stock	100,000	5.29	D

Explanation of Responses:

1. 50,650 shares held in escrow pursuant to the merger agreement by and between WaveSmith and CIENA; 335,712 shares are restricted shares and are held in a book account at the transfer agent which will be fully vested and distributed to Mr. O'Neil by November 18, 2005; and 33,205 are held by Mr. O'Neil without restriction.

2. The shares vest at a rate of 25% on the one year anniversary date and 2.084% for each full month after the one year anniversary of the vesting commencement date.

	Robert O'Neil/Anita Weiskerger by POA	12/11/2003
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (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).
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