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US5337391A Expired / Lapsed US ⏱️ 0.0 years remaining

Optoelectronic sub-module and method of making same

Assignee: Motorola Solutions Inc
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Filing: 1993-05-03
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Granted: 1994-08-09
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Expires: 2013-05-03
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Abstract

Abstract An optoelectronic sub-module (100,200) having a major surface (103,203)and an edge surface (104) with electrical tracings (116) disposed on the major surface (103,203). A light transmitting device (114) having a working portion is mounted on the major surface (103,203) with the working portion of the light transmitting device (114) directed perpendicularly to the edge surface (104) of the sub-module (100,200), and wherein the light transmitting device (114) is connected to at least one of the electrical tracings (116). An angled reflective surface (109) is formed between the major and edge surfaces. A photodetector (118) having a working portion is positioned on the major surface (103,203) with the working portion of the photodetector (118) positioned over the angled surface (109).

Inventors

  • 👤 Michael S. Lebby

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 21:06
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4292; G02B6/10; G02B6/12; G02B6/122; G02B6/1221; G02B6/36; G02B6/38; G02B6/3807; G02B6/3897; G02B6/4201; G02B6/4204

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 135 words
An optoelectronic sub-module comprising: a unitary molded plastic element having a major surface and an edge surface; electrical tracings disposed on the unitary molded plastic element; a light transmitting device having a working portion, the light transmitting device joined to the molded plastic element, the working portion of the light transmitting device directed perpendicularly to the edge surface of the unitary molded plastic element, and the light transmitting device connected to at least one of the electrical tracings; an angled reflective surface transecting the major surface and the edge surface of the unitary molded plastic element; and a photodetector having a working portion, the photodetector positioned on the major surface with the working portion of the photodetector positioned over the angled surface, and with the photodetector connected to at least one of the electrical tracings.
Claim 2
Dependent Claim 135 words
An optoelectronic sub-module comprising: a unitary molded plastic element having a major surface and an edge surface; electrical tracings disposed on the unitary molded plastic element; a light transmitting device having a working portion, the light transmitting device joined to the molded plastic element, the working portion of the light transmitting device directed perpendicularly to the edge surface of the unitary molded plastic element, and the light transmitting device connected to at least one of the electrical tracings; an angled reflective surface transecting the major surface and the edge surface of the unitary molded plastic element; and a photodetector having a working portion, the photodetector positioned on the major surface with the working portion of the photodetector positioned over the angled surface, and with the photodetector connected to at least one of the electrical tracings.
Claim 3
Dependent Claim 18 words
An optoelectronic sub-module as claimed in claim 1 wherein the light transmitting device is an edge emitting laser.
Claim 4
Dependent Claim 19 words
An optoelectronic sub-module as claimed in claim 1 wherein the photodetector having a working portion is a p-i-n photodiode.
Claim 5
Dependent Claim 27 words
An optoelectronic sub-module as claimed in claim 1 wherein the angled reflective surface transecting the major surface and the edge surface is coated with a reflective material.
Claim 6
Dependent Claim 22 words
An optoelectronic sub-module as claimed in claim 1 further comprising an alignment ferrule located in the edge surface of the molded element.
Claim 7
Dependent Claim 60 words
An optoelectronic sub-module as claimed in claim 5 further comprising: an optical connector having a body that surrounds a plurality of optical fibers with an alignment guide for inserting into the alignment ferrule of the optoelectronic sub-module to position at least one of the plurality of optical fibers in optical alignment with the working portion of the light transmitting device.
Claim 8
Dependent Claim 22 words
An optoelectronic sub-module as claimed in claim 1 further comprising an integrated circuit mounted on the major surface of the molded element.
Claim 9
Dependent Claim 172 words
An optoelectronic sub-module comprising: a unitary molded plastic element having a major surface and an edge surface; electrical tracings disposed onto the unitary molded plastic element; a light transmitting device having a working portion, the light transmitting device joined to the unitary molded plastic element, the working portion of the light transmitting device directed perpendicularly to the edge surface of the molded plastic element, and the light transmitting device connected to at least one of the electrical tracings; an angled reflective surface transecting the major surface and the edge surface of the unitary molded plastic element, the angled surface being positioned to receive light directed in a plane parallel with the edge and to reflect the received light generally perpendicular to the major surface; and a photodetector having a working portion, the photodetector positioned on the major surface with the working portion of the photodetector positioned over the angled surface to receive reflected light from the angled reflective surface, and with the photodetector connected to at least one of the electrical tracings.
Claim 10
Dependent Claim 172 words
An optoelectronic sub-module comprising: a unitary molded plastic element having a major surface and an edge surface; electrical tracings disposed onto the unitary molded plastic element; a light transmitting device having a working portion, the light transmitting device joined to the unitary molded plastic element, the working portion of the light transmitting device directed perpendicularly to the edge surface of the molded plastic element, and the light transmitting device connected to at least one of the electrical tracings; an angled reflective surface transecting the major surface and the edge surface of the unitary molded plastic element, the angled surface being positioned to receive light directed in a plane parallel with the edge and to reflect the received light generally perpendicular to the major surface; and a photodetector having a working portion, the photodetector positioned on the major surface with the working portion of the photodetector positioned over the angled surface to receive reflected light from the angled reflective surface, and with the photodetector connected to at least one of the electrical tracings.
Claim 11
Dependent Claim 18 words
An optoelectronic sub-module as claimed in claim 8 wherein the light transmitting device is an edge emitting laser.
Claim 12
Dependent Claim 19 words
An optoelectronic sub-module as claimed in claim 8 wherein the photodetector having a working portion is a p-i-n photodiode.
Claim 13
Dependent Claim 19 words
An optoelectronic sub-module as claimed in claim 8 wherein the angled reflective surface is coated with a reflective material.
Claim 14
Dependent Claim 22 words
An optoelectronic sub-module as claimed in claim 8 further comprising an alignment ferrule located on the edge surface of the molded element.
Claim 15
Dependent Claim 54 words
An optoelectronic sub-module as claimed in claim 12 further comprising a connector having a body that surrounds a plurality of optical fibers with an alignment guide for inserting into the alignment ferule of the optoelectronic sub-module to position at least one of the plurality of the optical fibers to the working portion the photodetector.
Claim 16
Dependent Claim 22 words
An optoelectronic sub-module as claimed in claim 8 further comprising an integrated circuit mounted on the major surface of the molded element.
Claim 17
Dependent Claim 157 words
A molded optoelectronic waveguide module comprising: a unitary molded plastic optical portion having a major surface, a first edge surface, a second edge surface with a facet, and having a first waveguide and a second waveguide embedded into the unitary molded plastic optical portion, wherein the first waveguide extends from the first edge surface to the facet, and wherein the second waveguide extends from the first edge surface to the second edge surface; electrical tracings disposed on the major surface of the unitary molded plastic optical portion; an edge emitting laser having a working portion, the working portion of the edge emitting laser directed into the facet on the second edge surface, the edge emitting laser connected to at least one of the electrical tracings; and a photodetector having a working portion, the working portion of the photodetector directed into an end of the second waveguide, the photodetector connected to at least one of the electrical tracings.
Claim 18
Dependent Claim 157 words
A molded optoelectronic waveguide module comprising: a unitary molded plastic optical portion having a major surface, a first edge surface, a second edge surface with a facet, and having a first waveguide and a second waveguide embedded into the unitary molded plastic optical portion, wherein the first waveguide extends from the first edge surface to the facet, and wherein the second waveguide extends from the first edge surface to the second edge surface; electrical tracings disposed on the major surface of the unitary molded plastic optical portion; an edge emitting laser having a working portion, the working portion of the edge emitting laser directed into the facet on the second edge surface, the edge emitting laser connected to at least one of the electrical tracings; and a photodetector having a working portion, the working portion of the photodetector directed into an end of the second waveguide, the photodetector connected to at least one of the electrical tracings.
Claim 19
Dependent Claim 21 words
A molded optoelectronic waveguide module as claimed in claim 15 wherein the photodetector having a working portion is a p-i-n photodetector.
Claim 20
Dependent Claim 25 words
A molded optoelectronic waveguide module as claimed in claim 15 further comprising an integrated circuit mounted on the major surface of the molded optical portion.
Claim 21
Dependent Claim 26 words
A molded optoelectronic waveguide module as claimed in claim 15 further comprising an alignment ferrule locate on the first edge surface of the molded optical portion.
Claim 22
Dependent Claim 31 words
A molded optoelectronic waveguide module as claimed in claim 15 wherein the second edge surface with a facet is formed with the facet in an opening in the molded optical portion.
Claim 23
Dependent Claim 26 words
A molded optoelectronic waveguide module as claimed in claim 15 further comprising: a photonic device operably engaged with the second waveguide on the second edge surface.

References Cited (Backward Citations)

US4727248A Cited
US4826272A Cited
US4943136A Cited
US5202943A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-08-08 1998-02-07 1998-08-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-08-08 2002-02-07 2002-08-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-08-08 2006-02-07 2006-08-09 $7700.00 Window Closed / Lapsed

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