Optical module access tray

• US 6,748,154 B2
• Filed: 03/28/2002
• Issued: 06/08/2004
• Est. Priority Date: 03/28/2002
• Status: Expired due to Term

• Current Assignee: Ciena Corporation
• Original Assignee: Nortel Networks Limited (Nortel Networks Corporation)
• Inventors: Patel, Bhupendra, Lee, Cindy, OʼLeary, Mitchell J., Bulman-Fleming, Jon
• Primary Examiner(s): Zarroli, Michael C.
• Application Number:
  US10/108,789
• Publication Number:
  US 20030185537A1
• Time in Patent Office: 803 Days
• Field of Search: 385/135, 439/131, 439/142
• US Class Current: 385/135
• CPC Class Codes: G02B 6/4455 characterised by the way of extraction or insertion of the cassette in the distribution frame, e.g. pivoting, sliding, rotating or gliding

Abstract

An optical module includes an optical amplifier to amplify optical signals received over optical fiber and an access tray that slides into and out of the optical module. The access tray provides access to optical fiber connections to and from the optical amplifier. The access tray includes a housing that slides into and out of the optical module, a first connection to mate to the optical fiber coming from the amplifier, a second connection to mate to optical fiber going to the amplifier, and a door, attached to the housing, which restricts access to the first connector and the second connector when closed.

Claims

1. An access tray for use with an optical module, the access tray comprising:

a housing that slides into and out of the optical module;

a first connection to mate to incoming optical fiber;

a second connection to mate to outgoing optical fiber; and

a door, attached to the housing, which restricts access to the first connection and the second connection when closed, the door having at least one aperture which allows access to the incoming optical fiber and the outgoing optical fiber;

wherein the housing also pivots relative to the optical module.

2. The access tray of claim 1, further comprising:

a lock which connects the housing to the optical module;

wherein, in a locked position, the lock prevents the housing from sliding into and out of the optical module.

3. The access tray of claim 1, wherein pivoting of the housing occurs after the housing slides a predetermined amount outside of the optical module.

4. The access tray of claim 3, further comprising:

a lock which connects the housing to the optical module;

wherein, in a locked position, the lock prevents the housing from pivoting relative to the optical module.

5. The access tray of claim 1, wherein the housing is made of plastic.

6. The access tray of claim 1, further comprising:

a metal enclosure, located inside the optical module, the housing sliding into and out of the metal enclosure.

7. A The access tray of claim 1, wherein the first connection comprises a first connector pair and the second connection comprises a second connector pair.

8. The access tray of claim 1, wherein the first connection comprises a first spliced connection and the second connection comprises a second spliced connection.

9. The access tray of claim 1, further comprising:

a storage area for storing optical fiber slack.

10. An optical module, comprising:

an optical amplifier to amplify optical signals received over optical fiber; and

an access tray which slides into and out of the optical module, the access tray providing access to optical fiber connections to and from the optical amplifier, the access tray comprises;

a housing that slides into and out of the optical module;

a first connection to mate to optical fiber coming from the amplifier;

a second connection to mate to optical fiber going to the amplifier; and

a door, attached to the housing, which restricts access to the first connector and the second connector when closed, the door having at least one aperture which allows access to the incoming optical fiber and the outgoing optical fiber.

11. The optical module of claim 10, further comprising:

a lock which connects the housing to the optical module;

wherein, in a locked position, the lock prevents the housing from sliding into and out of the optical module.

12. The optical module of claim 10, wherein the housing also pivots relative to the optical module.

13. The optical module of claim 12, wherein pivoting of the housing occurs after the housing slides a predetermined amount outside of the optical module.

14. The optical module of claim 13, further comprising:

a lock which connects the housing to the optical module;

wherein, in a locked position, the lock prevents the housing from pivoting relative to the optical module.

15. The optical module of claim 10, wherein the housing is made of plastic.

16. The optical module of claim 10, further comprising:

a metal enclosure, located inside the optical module, the housing sliding into and out of the metal enclosure.

17. The optical module of claim 10, wherein the first connection comprises a first connector pair and the second connection comprises a second connector pair.

18. The optical module of claim 10, wherein the first connection comprises a first spliced connection and the second connection comprises a second spliced connection.

19. The optical module of claim 10, wherein the access tray further comprises:

a storage area for storing optical fiber slack.