EP0259018A1
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EP
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Optoelectronics package for a semiconductor laser
Assignee: TE Connectivity Corp
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Filing: 1987-08-06
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Granted: —
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Expires: 2007-08-06
Abstract
Abstract An optoelectronics package (1) comprising, an optical bench (12) along which is defined an optical axis (43), a semiconductor laser (21) along the optical axis (43), a lens (27) focused on the laser (21) and transmitting optical emission from the laser (21) along the optical axis (43), an optical fiber (45) having an optical face (48) aligned with the optical axis (43), and the fiber (45) is secured to the optical bench (12) with a column load applied on the fiber (45).
Inventors
- 👤 Eugene Irving Gordon
- 👤 Robert James Nielsen
- 👤 John William Stafford
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 18:13
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/06; G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4248; G02B6/4204; G02B6/4219; G02B6/422; G02B6/4225; G02B6/4207; G02B6/4236; G02B6/4238; H01S5/02; H01S5/022; H01S5/02208; H01S5/0225; H01S5/02251; H01S5/023; H01S5/02325; H01S5/024; H01S5/02407; H01S5/02415
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
216 words
An optoelectronics package (1) comprising, a sealed enclosure (2), a semiconductor laser (21) in the enclosure (2), an optical fiber (45)extending from the interior of the enclosure (2) to an exterior of the enclosure (2) and receiving optical emission from a front facet of the laser (21), a monitor (23) in the enclosure (2) for monitoring optical emission from a rear facet of the laser (21), and electrical contact terminals (6) externally of the enclosure (2) and connected electrically to the laser (21) and the monitor (23), respectively, characterized in that; an optical bench (12) is in the enclosure (2) and along which is defined an optical axis (43), the semiconductor laser (21) is mounted on the optical bench (12) with the front facet along the optical axis (43), the monitor (23) is mounted on the optical bench for receiving optical emission from the rear facet, a lens (27) is focused on the front facet for transmitting optical emission from the front facet along the optical axis (43), the lens (27) is positioned at a desired location on the optical bench (12), and the optical fiber (45) has a first optical face (48) aligned by a positioning means (49,50,55) with the optical axis (43)and a second optical face projecting to an exterior of the enclosure (2).
Claim 2
Dependent Claim
216 words
An optoelectronics package (1) comprising, a sealed enclosure (2), a semiconductor laser (21) in the enclosure (2), an optical fiber (45)extending from the interior of the enclosure (2) to an exterior of the enclosure (2) and receiving optical emission from a front facet of the laser (21), a monitor (23) in the enclosure (2) for monitoring optical emission from a rear facet of the laser (21), and electrical contact terminals (6) externally of the enclosure (2) and connected electrically to the laser (21) and the monitor (23), respectively, characterized in that; an optical bench (12) is in the enclosure (2) and along which is defined an optical axis (43), the semiconductor laser (21) is mounted on the optical bench (12) with the front facet along the optical axis (43), the monitor (23) is mounted on the optical bench for receiving optical emission from the rear facet, a lens (27) is focused on the front facet for transmitting optical emission from the front facet along the optical axis (43), the lens (27) is positioned at a desired location on the optical bench (12), and the optical fiber (45) has a first optical face (48) aligned by a positioning means (49,50,55) with the optical axis (43)and a second optical face projecting to an exterior of the enclosure (2).
Claim 3
Dependent Claim
48 words
An optoelectronics package (10) as recited in claim 1 further characterized in that; the positioning means (49,50,55)is secured to the optical fiber (45) for applying a column load on the fiber (45), and a length of the fiber is smoothly curved in relief of the applied column load.
Claim 4
Dependent Claim
87 words
An optoelectronics package (10) as recited in claim 1 further characterized in that; an optical diaphragm (29) is mounted on the optical bench (12) between the lens (27) and the first optical face (48), a diaphragm aperture (32) of the optical diaphragm (29) is aligned with the optical axis (43), a pedestal (30) is against said lens (27) supporting said optical diaphragm (29), and a holder (31) on the optical bench (12), the holder (31) retaining the lens (27), the optical diaphragm (29) and the pedestal (30).
Claim 5
Dependent Claim
29 words
An optoelectronics package (10) as recited in claim 3 further characterized in that; a length of the fiber (45) is smoothly curved in relief of the applied column load.
Claim 6
Dependent Claim
127 words
An alignment fixture for a semiconductor laser, comprising, a semiconductor laser (4) with a front facet of optical emission along an optical axis (43), a monitor (23) of optical emission for receiving optical emission from a rear facet of optical emission, a lens (27) focused on the front facet for transmitting optical emission from the front facet along the optical axis (43), an optical fiber (45) with an optical face (48) aligned with the optical axis (43), characterized in that; the laser (21), the monitor (23), the lens (27) and the fiber (45) are on an optical bench (12) along which is defined an optical axis (43), a datum surface (16ʹ) is on the bench for aligning the lens (27) and for aligning the optical axis (43).
Claim 7
Dependent Claim
127 words
An alignment fixture for a semiconductor laser, comprising, a semiconductor laser (4) with a front facet of optical emission along an optical axis (43), a monitor (23) of optical emission for receiving optical emission from a rear facet of optical emission, a lens (27) focused on the front facet for transmitting optical emission from the front facet along the optical axis (43), an optical fiber (45) with an optical face (48) aligned with the optical axis (43), characterized in that; the laser (21), the monitor (23), the lens (27) and the fiber (45) are on an optical bench (12) along which is defined an optical axis (43), a datum surface (16ʹ) is on the bench for aligning the lens (27) and for aligning the optical axis (43).
Claim 8
Dependent Claim
43 words
An alignment fixture as recited in claim 5, further characterized in that; the datum surface (16ʹ) is on an end wall (16) of the optical bench (12), and an aperture (17) through the end wall (16) is aligned with the optical axis (43).
Claim 9
Dependent Claim
35 words
An alignment fixture as recited in claim 5, further characterized in that; a tube (49) surrounds the fiber (45), and a bushing (55) surrounds the tube (49) and is joined to the optical bench (12).
Claim 10
Dependent Claim
65 words
An optical fiber assembly (54) comprising, a length of optical fiber (45) having an optical face (48), a tube (49) joined to the fiber (45), characterized in that; means (61,52,53) are connected to the fiber (45) for applying a column load on the fiber (45) and for causing the fiber (45) to bend in a smoothly curved configuration within the interior of the tube (49).
Claim 11
Dependent Claim
65 words
An optical fiber assembly (54) comprising, a length of optical fiber (45) having an optical face (48), a tube (49) joined to the fiber (45), characterized in that; means (61,52,53) are connected to the fiber (45) for applying a column load on the fiber (45) and for causing the fiber (45) to bend in a smoothly curved configuration within the interior of the tube (49).
Claim 12
Dependent Claim
42 words
An optical fiber assembly (54) as recited in claim 8, wherein, a segment of conductive material (50) on the surface of the fiber (45) is joined to the tube (49) and forms an attachment of the fiber (45) to the tube (49).
Claim 13
Dependent Claim
58 words
An optical fiber assembly as recited in claim 8 or 9, further characterized in that; the means (61,52,53,46) includes a second segment of conductive material (46) on the surface of the fiber (45), a conductive second tube (52) and material (53) joining the second tube (52) and second segment of conductive material (46) and forming an hermetic seal.
References Cited (Backward Citations)
EP0152932A2
Cited
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