IP Library Granted Patent US 6,987,909
Granted Patent B1
US 6,987,909 · App. 10/305,042 · Granted Jan 17, 2006

Optical systems and athermalized optical component apparatuses and methods for use therein

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Quick Facts
Patent No.
US 6,987,909
App. No.
10/305,042
Granted
Jan 17, 2006
Kind
B1
Abstract

An athermalized optical fiber component assembly including a limiting member, a mounting structure attached to the limiting member, a temperature compensating substrate attached to the mounting structure, and an optical fiber component mounted on the temperature compensating substrate. The movement of the temperature compensating substrate as a function of temperature is constrained by the limiting member. Also, a method for manufacturing an athermalized optical fiber component assembly.

Claims (32)

1. A method for manufacturing an athermalized optical fiber component, comprising:

attaching a temperature compensating substrate to a mounting structure;

attaching a fiber including an optical fiber component to the temperature compensating substrate;

placing the temperature compensating substrate in contact with a limiter to limit temperature induced movement of the temperature compensating substrate; and,

attaching the mounting structure to a limiting member in contact with the limiter and then removing the limiter from contact with the limiting member.

2. The method of claim 1 wherein attaching a fiber includes attaching the fiber to the temperature compensating substrate with a first glass bead.

3. The method of claim 2 wherein attaching a fiber includes attaching the fiber to the temperature compensating substrate with a motion limiting fastener.

4. The method of claim 2 , wherein attaching a fiber includes:

placing a strain on the fiber, and

then attaching the fiber to the temperature compensating substrate with a second glass bead.

5. The method of claim 4 , wherein attaching a fiber includes measuring the reflection wavelength of the optical fiber component, melting the second glass bead, and adjusting the strain on the fiber.

6. The method of claim 1 , wherein the temperature compensating substrate moves as a function of temperature and the movement of the temperature compensating substrate is constrained by the limiting member.

7. The method of claim 1 , further comprising heating the optical fiber component assembly, mounting structure, housing, and limiter to a specified temperature prior to providing a limiter.

8. The method of claim 1 , further comprising surrounding the fiber and temperature compensating substrate with filler.

9. The method of claim 1 , wherein said providing a limiter includes providing two limiters.

10. The method of claim 1 wherein the optical fiber component is a Bragg grating.

11. An athermalized optical fiber component assembly comprising:

a limiting member;

a mounting structure attached to the limiting member;

a limiter in contact with the limiting member that can be removed after the mounting structure is attached to the limiting member;

a temperature compensating substrate that moves as a function of temperature attached to the mounting structure; and

an optical fiber component mounted on the temperature compensating substrate;

wherein the movement of the temperature compensating substrate as a function of temperature is constrained by the limiting member.

12. The assembly of claim 11 wherein the mounting structure is U-shaped.

13. The assembly of claim 11 wherein the mounting structure further comprises at least one triangular shaped member in contact with the temperature compensating substrate.

14. The assembly of claim 11 further comprising a filler surrounding the fiber and the temperature compensating substrate.

15. The assembly of claim 11 further comprising a glass bead mounting a first end of the optical fiber component on the temperature compensating substrate.

16. The assembly of claim 15 further comprising adhesive next to the glass bead mounting the first end of the optical fiber component on the temperature compensating substrate.

17. The assembly of claim 15 further comprising a second glass bead mounting a second end of the optical fiber component on the temperature compensating substrate while the optical fiber component is strained.

18. The assembly of claim 11 further comprising a spacer wherein the spacer is between the optical fiber component and the temperature compensating substrate.

19. The assembly of claim 11 wherein the temperature compensating substrate is a bimetal having a first and second metal.

20. The assembly of claim 19 wherein the first metal of the bimetal temperature compensating substrate is shorter than the second metal of the temperature compensating substrate.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 9, 2021
From: LEVEL 3 COMMUNICATIONS, LLC
To: OPTIC153 LLC
Reel/Frame 056469/0773 →
MORTGAGE Recorded Dec 13, 2016
From: TERAXION INC.
To: BDC CAPITAL INC.
Reel/Frame 040908/0230 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 30, 2011
From: BROADWING, LLC
To: LEVEL 3 COMMUNICATIONS, LLC
Reel/Frame 026533/0440 →
CHANGE OF NAME Recorded May 18, 2011
From: BROADWING CORPORATION
To: BROADWING, LLC
Reel/Frame 026299/0605 →
PROPRIETARY INFORMATION, INVENTIONS AND NON-SOLICITATION AGREEMENT Recorded Apr 19, 2010
From: SCARSELLA, PATRICIA; CARIGNAN, CLAUDE; DREMBLY, PIERRE; MARTIN, MICHAEL
To: CORVIS CORPORATION
Reel/Frame 024244/0714 →
CHANGE OF NAME Recorded May 22, 2007
From: CORVIS CORPORATION
To: BROADWING CORPORATION
Reel/Frame 019323/0858 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 29, 2005
From: KASHYAP, RAMAN; BOUDREAULT, ANDRE; HARMON, ROBERT A.; KOSTKO, IRINA A.; TIMOFEEV, FEODOR N.; VEZINA, MARTIN
To: CORVIS CORPORATION
Reel/Frame 016447/0704 →