US4079404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-aligning support structure for optical components
Assignee: International Business Machines Corp
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Filing: 1976-12-30
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Granted: 1978-03-14
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Expires: 1996-12-30
Abstract
Abstract An optical assembly structure wherein miniature optical components such as lasers, modulators, lenses, thin-film and fiber-optic waveguides, and photodetectors are critically aligned and supported for coactive operation by means of two or more wafers which are formed with complementary grooves and mortises to support the loose optical components such as lenses and fiber-optic waveguides and to receive alignment rails to insure the relativity of the wafers, which also have formed integral therewith optical elements such as waveguides, modulators, and lasers, to produce an integrated optical assembly somewhat in the manner of an "optical bench," wherein the bench structure also provides an active optical element.
Inventors
- 👤 Liam David Comerford
- 👤 John David Crow
- 👤 Robert Allan Laff
- 👤 Eric Gung-Hwa Lean
- 👤 Michael John Brady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:04
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/30; G02B6/42; G02B6/4201; G02B6/4219; G02B6/4228; G02B6/423; G02B6/4249; H; H01; H01S; H01S5/00; H01S5/02; H01S5/022; H01S5/023; H01S5/02325; H01S5/02326; H01S5/40; H01S5/4025; H01S5/4031; H10; H10H; H10H29/00; H10H29/10; H10H29/14; H01S5/005; H01S5/0225; H01S5/02251
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
118 words
An optical assembly comprising: a first structural member having a plurality of parallel Vee-shaped grooves opening into one face thereof and another groove perpendicular to and intersecting said plurality of grooves; a cylindrica lens laid into said perpendicularly oriented groove; a plurality of optical fibers laid into said plurality of grooves with their ends aligned with said cylindrical lens; a solid state laser array having end faces defining a lasing cavity and a plurality of electrodes operable when potentialized to produce a population inversion to stimulate emissions in said cavity in a plurality of parallel paths, the said array being affixed to said structural member with one of its cavity end faces in juxtoposition to said cylindrical lens.
Claim 2
Dependent Claim
118 words
An optical assembly comprising: a first structural member having a plurality of parallel Vee-shaped grooves opening into one face thereof and another groove perpendicular to and intersecting said plurality of grooves; a cylindrica lens laid into said perpendicularly oriented groove; a plurality of optical fibers laid into said plurality of grooves with their ends aligned with said cylindrical lens; a solid state laser array having end faces defining a lasing cavity and a plurality of electrodes operable when potentialized to produce a population inversion to stimulate emissions in said cavity in a plurality of parallel paths, the said array being affixed to said structural member with one of its cavity end faces in juxtoposition to said cylindrical lens.
Claim 3
Dependent Claim
33 words
The optical assembly of claim 1 wherein said first structural member and said laser array are provided with complementary geometric shapes which interactively coact to fix the relative position of the two elements.
Claim 4
Dependent Claim
30 words
The optical assembly of claim 2 wherein said complementary geometric shapes comprise a Vee-shaped groove in each of the said member and said laer array with an interposed cylindrical rail.
Claim 5
Dependent Claim
28 words
The optical assembly of claim 2 wherein said complementary geometric shapes comprise a pyramidal pocket in each of said member and said laser array with an interposed sphere.
Claim 6
Dependent Claim
27 words
The optical assembly of claim 2 wherein said complementary geometric shapes comprise a mortise in one of the mating parts and a complementary tenon in the other.
Claim 7
Dependent Claim
38 words
The optical assembly of claim 1 wherein said structural member is provided with a plurality of contact members having a spacing of the electrodes on said laser array when said laser array is affixed to said structural member.
Claim 8
Dependent Claim
112 words
An optical assembly comprising: a first member having a plurality of grooves therein, and a plurality of active semiconductor devices, a second member having a plurality of solid state laser devices and a plurality of grooves therein; means coacting with the grooves in both said first and second members for fixing the relative orientation of the two members when they abut; a cylindrical lens and a plurality of optical fibers disposed in further grooves in said structural member whereby radiation produced by said solid state laser devices is coupled by said cylindrical lens into said optical fibers and said active semiconductor devices are coupled to receive additional radiation from said laser devices.
Claim 9
Dependent Claim
112 words
An optical assembly comprising: a first member having a plurality of grooves therein, and a plurality of active semiconductor devices, a second member having a plurality of solid state laser devices and a plurality of grooves therein; means coacting with the grooves in both said first and second members for fixing the relative orientation of the two members when they abut; a cylindrical lens and a plurality of optical fibers disposed in further grooves in said structural member whereby radiation produced by said solid state laser devices is coupled by said cylindrical lens into said optical fibers and said active semiconductor devices are coupled to receive additional radiation from said laser devices.
Claim 10
Dependent Claim
14 words
The optical assembly of claim 7 wherein said first member is fabricated of silicon.
Claim 11
Dependent Claim
44 words
The optical assembly of claim 8 wherein said silicon is of p type and additional dopants are added thereto to form a plurality of discrete diffused P-N junctions sensitive to light and disposed within the radiation of each of said solid state laser devices.
Claim 12
Dependent Claim
38 words
The optical assembly of claim 8 wherein silicon is P-type and additional dopants are added thereto to form a plurality of P-N junctions which when back-biased are sensitive to the thermal radiation of each of said laser devices.
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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) | 1981-03-13 | 1981-09-12 | 1982-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-13 | 1985-09-12 | 1986-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-13 | 1989-09-12 | 1990-03-14 | $7700.00 | Window Closed / Lapsed |