METHOD AND SYSTEM FOR A LIGHT SOURCE ASSEMBLY SUPPORTING DIRECT COUPLING TO AN INTEGRATED CIRCUIT
First Claim
1. A system for processing signals, the system comprising:
- a light source assembly affixed to a photonically enabled complementary metal-oxide semiconductor (CMOS) chip, said light source assembly comprising a laser, a microlens, a reciprocal polarization rotator, a non-reciprocal polarization rotator, a turning mirror, and an optical bench, said light source assembly being operable to;
generate an optical signal utilizing said laser;
focus said optical signal utilizing said microlens;
rotate a polarization of said optical signal utilizing said reciprocal polarization rotator;
reflect said optical signal at an angle defined by said turning mirror;
transmit said reflected optical signal out of said light source assembly to one or more grating couplers in said photonically enabled CMOS chip; and
reduce optical feedback to said laser from an optical signal returned from said photonically enabled CMOS chip utilizing said non-reciprocal polarization rotator.
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Abstract
Methods and systems for a light source assembly supporting direct coupling to a photonically enabled complementary metal-oxide semiconductor (CMOS) chip are disclosed. The assembly may include a laser, a microlens, a turning mirror, reciprocal and/or non-reciprocal polarization rotators, and an optical bench. The laser may generate an optical signal that may be focused utilizing the microlens. The optical signal may be reflected at an angle defined by the turning mirror, and may be transmitted out of the light source assembly to one or more grating couplers in the chip. The laser may include a feedback insensitive laser. The light source assembly may include two electro-thermal interfaces between the optical bench, the laser, and a lid affixed to the optical bench. The turning mirror may be integrated in a lid affixed to the optical bench or may be integrated in the optical bench.
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Citations
57 Claims
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1. A system for processing signals, the system comprising:
a light source assembly affixed to a photonically enabled complementary metal-oxide semiconductor (CMOS) chip, said light source assembly comprising a laser, a microlens, a reciprocal polarization rotator, a non-reciprocal polarization rotator, a turning mirror, and an optical bench, said light source assembly being operable to; generate an optical signal utilizing said laser; focus said optical signal utilizing said microlens; rotate a polarization of said optical signal utilizing said reciprocal polarization rotator; reflect said optical signal at an angle defined by said turning mirror; transmit said reflected optical signal out of said light source assembly to one or more grating couplers in said photonically enabled CMOS chip; and reduce optical feedback to said laser from an optical signal returned from said photonically enabled CMOS chip utilizing said non-reciprocal polarization rotator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A system for processing signals, the system comprising:
a light source assembly affixed to a photonically enabled complementary metal-oxide semiconductor (CMOS) chip, said light source assembly comprising a laser, a microlens, a non-reciprocal polarization rotator, a turning mirror, and an optical bench, said light source assembly being operable to; generate an optical signal utilizing said laser; focus said generated optical signal utilizing said microlens; reflect said optical signal at an angle defined by said turning mirror; and transmit said reflected optical signal out of said light source assembly to one or more grating couplers in said photonically enabled CMOS chip; and reduce optical feedback to said laser from an optical signal returned from said photonically enabled CMOS chip utilizing said non-reciprocal polarization rotator. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A system for processing signals, the system comprising:
a light source assembly affixed to a photonically enabled complementary metal-oxide semiconductor (CMOS) chip, said light source assembly comprising a laser, a microlens, a turning mirror, a reciprocal polarization rotator, and an optical bench, said light source assembly being operable to; generate an optical signal utilizing said laser; focus said generated optical signal utilizing said microlens; rotate a polarization of said optical signal utilizing said reciprocal polarization rotator; reflect said optical signal at an angle defined by said turning mirror; transmit said reflected optical signal out of said light source assembly to one or more grating couplers in said photonically enabled CMOS chip. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A system for processing signals, the system comprising:
a light source assembly affixed to a photonically enabled complementary metal-oxide semiconductor (CMOS) chip, said light source assembly comprising a laser, a microlens, a turning mirror, and an optical bench, said light source assembly being operable to; generate an optical signal utilizing said laser; focus said generated optical signal utilizing said microlens; reflect said optical signal at an angle defined by said turning mirror; and transmit said reflected optical signal out of said light source assembly to one or more grating couplers in said photonically enabled CMOS chip. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
Specification