公开(公告)号：US20210273408A1

公开(公告)日：2021-09-02

申请号：US16805526

申请日：2020-02-28

Applicant: INPHI CORPORATION

Inventor： Xiaoguang HE ,  Radhakrishnan L. NAGARAJAN ,  Brian TAYLOR

IPC: H01S5/10 ,  H01S5/022 ,  H01S5/028 ,  G02F1/01 ,  H01S5/323

Abstract: A thin-film device for a wavelength-tunable semiconductor laser. The device includes a cavity between a high-reflectivity facet and an anti-reflection facet designed to emit a laser light of a wavelength in a tunable range determined by two Vernier-ring resonators with a joint-free-spectral-range between a first wavelength and a second wavelength. The device further includes a film including multiple pairs of a first layer and a second layer sequentially stacking to an outer side of the high-reflectivity facet. Each layer in each pair has one unit of respective optical thickness except one first or second layer in one pair having a larger optical thickness. The film is configured to produce inner reflectivity of the laser light from the high-reflectivity facet at least >90% for wavelengths in the tunable range starting from the first wavelength but at least

公开(公告)号：US20210088738A1

公开(公告)日：2021-03-25

申请号：US16578090

申请日：2019-09-20

Applicant: INPHI CORPORATION

Inventor： Chris TOGAMI ,  Radhakrishnan L. NAGARAJAN ,  Gary SASSER ,  Brian TAYLOR

IPC: G02B6/42 ,  H05K7/20 ,  F28F1/14

Abstract: An apparatus for dissipating heat from a photonic transceiver module. The apparatus includes a top-plate member disposed in a length direction of a package for the photonic transceiver module. The apparatus further includes multiple fins formed on the top-plate member along the length direction from a backend position to a frontend position except at least one fin with a shorter length, forming an elongated void from the backend position to one backend of the at least one fin. Additionally, the apparatus includes a cover member disposed over the multiple fins with a horizontal sheet, two vertical side sheets, and a flange bent vertically from a middle portion of backend of the horizontal sheet. Furthermore, the apparatus includes a spring loaded in the elongated void between the flange and the one backend of the at least one fin to minimize an air gap at the backend of the horizontal sheet.

公开(公告)号：US20210088739A1

公开(公告)日：2021-03-25

申请号：US17095269

申请日：2020-11-11

Applicant: INPHI CORPORATION

Inventor： Chris TOGAMI ,  Radhakrishnan L. NAGARAJAN ,  Gary SASSER ,  Brian TAYLOR

IPC: G02B6/42 ,  F28F1/14 ,  H05K7/20

Abstract: An apparatus for dissipating heat from a photonic transceiver module. The apparatus includes a top-plate member disposed in a length direction of a package for the photonic transceiver module. The apparatus further includes multiple fins formed on the top-plate member along the length direction from a backend position to a frontend position except at least one fin with a shorter length, forming an elongated void from the backend position to one backend of the at least one fin. Additionally, the apparatus includes a cover member disposed over the multiple fins with a horizontal sheet, two vertical side sheets, and a flange bent vertically from a middle portion of backend of the horizontal sheet. Furthermore, the apparatus includes a spring loaded in the elongated void between the flange and the one backend of the at least one fin to minimize an air gap at the backend of the horizontal sheet.

公开(公告)号：US20180323577A1

公开(公告)日：2018-11-08

申请号：US16039568

申请日：2018-07-19

Applicant: INPHI CORPORATION

Inventor： Brian TAYLOR ,  Radhakrishnan L. NAGARAJAN ,  Masaki KATO

IPC: H01S5/0687 ,  G02B6/28 ,  H04B10/50 ,  H01S5/12 ,  H04J14/02 ,  G02B6/125 ,  G02B6/42 ,  G02B6/12

CPC classification number: H01S5/0687 ,  G02B6/125 ,  G02B6/2813 ,  G02B6/2861 ,  G02B6/4286 ,  G02B2006/12135 ,  G02B2006/1215 ,  H01S5/12 ,  H04B10/5057 ,  H04J14/02

Abstract: A wavelength locker integrated with a silicon photonics transmission system comprising a silicon-on-insulator (SOI) substrate and an input via a power tap coupler to receive a fraction of a transmission signal with one or more frequencies from a primary output path of the silicon photonics transmission system. The wavelength locker further includes a splitter configured to split the input to a first signal in a first path and a second signal in a second path and a first delay-line-interferometer (DLI) coupled to the second path to receive the second signal and configured to generate an interference spectrum and output at least two sub-spectrums tunable to keep quadrature points of the sub-spectrums at respective one or more target frequencies. The wavelength locker is configured to generate an error signal fed back to the silicon photonics transmission system for locking the one or more frequencies at the one or more target frequencies.

公开(公告)号：US20220075115A1

公开(公告)日：2022-03-10

申请号：US17012629

申请日：2020-09-04

Applicant: INPHI CORPORATION

Inventor： Jie LIN ,  Masaki KATO ,  Bruno TOURETTE ,  Brian TAYLOR

IPC: G02B6/12 ,  H04B10/61 ,  H04B10/43

Abstract: A method for making a pair of photodiodes to detect low-power optical signal includes providing a waveguide including one or more branches in a silicon photonics substrate to deliver an input optical signal to the silicon photonics integrated circuit; forming a pair of nearly redundant photodiodes in silicon photonics platform in the silicon photonics substrate. coupling a first one of the pair of nearly redundant photodiodes optically to each of the one or more branches for receiving the input optical signal combined from all of the one or more branches; coupling a second one of the pair of nearly redundant photodiodes electrically in series to the first one of the pair of nearly redundant photodiodes; and drawing a current from the first one of the pair of nearly redundant photodiodes under a reversed bias voltage applied to the pair of nearly redundant photodiodes.