US4722586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-optical transducer module
Assignee: Flextronics Photonics PPT Inc
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Filing: 1985-04-12
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Granted: 1988-02-02
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Expires: 2005-04-12
Abstract
Abstract An electro-optical transducer module comprises a base member having a generally flat surface and a platform upstanding from the flat surface, an electro-optical transducer mounted on the platform, a fiber mount plate secured to the base member with one main face in confronting relationship with the generally flat surface of the base member, and an optical fiber secured to the fiber mount plate by way of its other main face. The optical fiber has an end face that is in optically-coupled relationship with the electro-optical transducer.
Inventors
- 👤 Ronald K. Dodson
- 👤 Raymond S. Enochs
- 👤 Randy S. Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:05
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4219; G02B6/4236; G02B6/4238; G02B6/4202; G02B6/4248
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
120 words
An electro-optical transducer module comprising a base member having a generally flat surface and a platform upstanding from said flat surface, an electro-optical transducer mounted on said platform, a fiber mount plate having first and second main faces and secured to the base member with its first main face in confronting relationship with said generally flat surface, and an optical fiber secured to the fiber mount plate by way of the second main face thereof, the optical fiber having an end face in optically-coupled relationship with said electro-optical transducer, wherein said fiber mount plate is made of ceramic material and platform is made of a thermally-conductive material having a coefficient of expansion that substantaily matches that of said ceramic materal.
Claim 2
Dependent Claim
120 words
An electro-optical transducer module comprising a base member having a generally flat surface and a platform upstanding from said flat surface, an electro-optical transducer mounted on said platform, a fiber mount plate having first and second main faces and secured to the base member with its first main face in confronting relationship with said generally flat surface, and an optical fiber secured to the fiber mount plate by way of the second main face thereof, the optical fiber having an end face in optically-coupled relationship with said electro-optical transducer, wherein said fiber mount plate is made of ceramic material and platform is made of a thermally-conductive material having a coefficient of expansion that substantaily matches that of said ceramic materal.
Claim 3
Dependent Claim
17 words
A module according to claim 1, wherein the optical fiber is glass bonded to the fiber mount
Claim 4
Dependent Claim
41 words
A module according to claim 1, wherein the base member has a wall that at least partially surrounds said generally flat surface, and wherein the module further comprises a cover that is secured to the base member in hermetically sealing fashion.
Claim 5
Dependent Claim
56 words
A module according to claim 1, wherein the electro-optical transducer is a laser diode having a front face directed towards the end face of the optical fiber and also having a back face, and wherein the module also comprises a photodiode positioned to receive light-emitted from the laser diode by way of the back face thereof.
Claim 6
Independent Claim
100 words
A method of assembling an electro-optical transducer module that comprises a base member having a generally flat surface and a platform upstanding from said flat surface, said method comprising mounting an electro-optical transducer on said platform, securing an optical fiber that has an end face to a first main face of a fiber mount plate that also has a second main face, and securing the fiber mount plate with its second main face in face-to-face contact with the generally flat surface of the base member and with the end face of the fiber in optically-coupled relationship with the electro-optical transducer.
Claim 7
Independent Claim
100 words
A method of assembling an electro-optical transducer module that comprises a base member having a generally flat surface and a platform upstanding from said flat surface, said method comprising mounting an electro-optical transducer on said platform, securing an optical fiber that has an end face to a first main face of a fiber mount plate that also has a second main face, and securing the fiber mount plate with its second main face in face-to-face contact with the generally flat surface of the base member and with the end face of the fiber in optically-coupled relationship with the electro-optical transducer.
Claim 8
Dependent Claim
50 words
A method according to claim 5, wherein the optical fiber is secured to the fiber mount plate by means of a solder having a first melting point and the fiber mount plate is subsequently secured to the base member by means of a solder having a second, lower melting point.
Claim 9
Dependent Claim
46 words
A method according to claim 5, wherein the fiber mount plate has a resistor at its second main face, and soldering of both the optical fiber to the fiber mount plate and the fiber mount plate to the base member is effected by heating the resistor.
Claim 10
Dependent Claim
28 words
A method according to claim 6, comprising subsequently securing a cover member to the base member by means of a solder having a third, still lower melting point.
Claim 11
Dependent Claim
44 words
A method according to claim 5, wherein the electro-optical transducer is mounted on said platform using a solder having a first melting point and the fiber mount plate is subsequently secured to the base member using a solder having a second, lower melting point.
Claim 12
Dependent Claim
11 words
An apparatus manufactured in accordance with the method of claim 5.
Claim 13
Dependent Claim
11 words
An apparatus manufactured in accordance with the method of claim 6.
Claim 14
Dependent Claim
11 words
An apparatus manufactured in accordance with the method of claim 7.
Claim 15
Dependent Claim
11 words
An apparatus manufactured in accordance with the method of claim 8.
Claim 16
Dependent Claim
11 words
An apparatus manufactured in accordance with the method of claim 9.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-01 | 1991-08-03 | 1992-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-01 | 1995-08-03 | 1996-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-01 | 1999-08-03 | 2000-02-02 | $7700.00 | Window Closed / Lapsed |