FORM 3	OMB APPROVAL
	OMB Number:          3235-0104
	Expires:        December 31, 2001
	Estimated average burden hours per response. . . . . . . .0.5

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, Section 17(a) of the Public Utility
Holding Company Act of 1935 or Section 30(f) of the Investment Company Act of 1940

(Print or Type Responses)

1.	Name and Address of Reporting Person*	2.	Date of Event Requiring Statement (Month/Day/Year)	3.	I.R.S. Identification Number of Reporting Person, if an entity (voluntary)
	CIENA Corporation		2-17-02		23-2725311
	(Last)              (First)           (Middle)
	1201 Winterson Road	4.	Issuer Name and Ticker or Trading Symbol	5.	Relationship of Reporting Person(s) to Issuer (Check all applicable)
			ONI Systems Corp. ONIS
	(Street)				[   ] Director	[   ] Officer (give title below)
		6.	If Amendment, Date of Original (Month/Day/Year)		[X] 10% Owner	[   ] Other (specify below)
	Linthicum,         MD       21090-2205
	(City)                (State)            (Zip)
		7.	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)
	No Securities Owned

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).

Explanation of Responses:

/s/ Russell B. Stevenson, Jr. Russell B. Stevenson, Jr. Senior Vice President, General Counsel and Secretary	February 20, 2002
**Signature of Reporting Person	Date

**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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.

FORM 3 (CONTINUED)

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 Deri- vative Security (Instr. 4)

4.

Conversion or Exercise Price of Derivative Security

5.

Ownership Form of Derivative Se- curity: Direct (D) or Indirect (I) (Instr. 5)

6.

Nature of Indirect Beneficial Ownership (Instr. 5)

Date Exer- cisable

Expi- ration Date

Title

Amount or Number of Shares

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

Report on a separate line for each class of securities beneficially owned directly or indirectly.

Explanation of Responses:

/s/ Russell B. Stevenson Russell B. Stevenson Senior Vice President, General Counsel and Secretary	February 20, 2002
**Signature of Reporting Person	Date

*	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).
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.