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US5859945A
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Array type light emitting element module and manufacturing method therefor
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1996-12-30
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Granted: 1999-01-12
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Expires: 2016-12-30
Abstract
Abstract An array type light emitting element module having a plurality of light emitting elements, a plurality of optical fibers (2) being placed in a one-to-one correspondence with the light emitting elements (1) so as to receive light emitted therefrom on one end face, and diffraction gratings (2a) each having a specific diffraction wavelength which are formed in the optical fibers near the incident ends of the optical fibers (2).
Inventors
- 👤 Takashi Kato
- 👤 Masakazu Shigehara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:46
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4249; G02B6/4204; G02B6/4215; G02B6/4219; G02B6/4236; G02B6/424; G02B6/4243; G02B6/4266; G02B6/4268; G02B6/4271
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
122 words
An array type light emitting element module comprising: a plurality of light emitting elements; a plurality of optical fibers placed in a one-to-one correspondence with said plurality of light emitting elements so that each fiber receives light emitted from its respective light emitting element on one end face thereof; and a plurality of diffraction gratings, each having a specific diffraction wavelength and each being formed in a respective one optical fiber of said plurality of optical fibers, wherein said plurality of diffraction gratings are formed proximate to incident ends of said optical fibers, and a first diffraction wavelength of at least one of said diffraction gratings differs from a second diffraction wavelength of at least a second one of said diffraction gratings.
Claim 2
Dependent Claim
122 words
An array type light emitting element module comprising: a plurality of light emitting elements; a plurality of optical fibers placed in a one-to-one correspondence with said plurality of light emitting elements so that each fiber receives light emitted from its respective light emitting element on one end face thereof; and a plurality of diffraction gratings, each having a specific diffraction wavelength and each being formed in a respective one optical fiber of said plurality of optical fibers, wherein said plurality of diffraction gratings are formed proximate to incident ends of said optical fibers, and a first diffraction wavelength of at least one of said diffraction gratings differs from a second diffraction wavelength of at least a second one of said diffraction gratings.
Claim 3
Dependent Claim
34 words
An array type light emitting element module as claimed in claim 1, wherein said plurality of optical fibers are arranged on a specific array plane such that they are substantially parallel to each other.
Claim 4
Dependent Claim
33 words
An array type light emitting element module as claimed in claim 1, wherein said plurality of light emitting elements and said incident ends of said optical fibers are mounted on a common board.
Claim 5
Dependent Claim
31 words
An array type light emitting element module as claimed in claim 1, further comprising an optical system placed between said light emitting elements and the incident ends of said optical fibers.
Claim 6
Dependent Claim
20 words
An array type light emitting element module as claimed in claim 4, wherein said optical system is a lens array.
Claim 7
Dependent Claim
36 words
An array type light emitting element module as claimed in claim 1, wherein at least one of said plurality of light emitting elements and said plurality of optical fibers are mounted on a Peltier effect device.
Claim 8
Dependent Claim
62 words
An array type light emitting element module as claimed in claim 6, wherein light output from at least one optical fiber of said plurality of optical fibers is monitored and said Peltier effect device is operated in response to the light output, thereby controlling temperatures of at least one of said plurality of light emitting elements and said plurality of diffraction gratings.
Claim 9
Dependent Claim
30 words
An array type light emitting element module as claimed in claim 1, further comprising an optical wave coupler to which emission ends of said plurality of optical fibers are coupled.
Claim 10
Dependent Claim
37 words
An array type light emitting element module as claimed in claim 8, wherein said optical wave coupler is mounted on a common board together with said plurality of light emitting elements and said plurality of optical fibers.
Claim 11
Dependent Claim
32 words
An array type light emitting element module as claimed in claim 8, further comprising an optical isolator inserted on a propagation light path on an output side of said optical wave coupler.
Claim 12
Dependent Claim
48 words
An array type light emitting element module as claimed in claim 8, further comprising a light modulator for modulating light emitted from said plurality of diffraction gratings by an arbitrary signal, so that each light emitting element of said plurality of light emitting elements produces stationary light output.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-01-11 | 2002-07-13 | 2003-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-01-11 | 2006-07-13 | 2007-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-01-11 | 2010-07-13 | 2011-01-12 | $7700.00 | Window Closed / Lapsed |