Mario Dagenais - Chevy Chase MD, US Stewart W Wilson - Silver Spring MD, US Anthony W. Yu - Spencerville MD, US Peter J. S. Heim - Washington DC, US
Assignee:
Quantum Photonics, Inc. - Jessup MD
International Classification:
H04B 10/12 H01S 3/00
US Classification:
359337, 359344
Abstract:
An optical amplification device includes a depolarizer for reducing the polarization sensitivity requirements on an SOA by changing the input to the SOA from having an arbitrary (unknown) polarization state to a known (depolarized) state. The depolarizer receives an input optical signal and outputs a depolarized, optical signal, and a semiconductor optical amplifier (SOA) receives the depolarized optical signal and outputs an amplified optical signal.
Methods And Devices For High Power, Depolarized Superluminescent Diodes
Anthony W. Yu - Spencerville MD, US Stewart W. Wilson - Billerica MA, US Dennis Bowler - Sudbury MA, US Peter J. S. Heim - Washington DC, US Scott A. Merritt - McLean VA, US
Assignee:
Covega, Inc. - Jessup MD
International Classification:
H10S 3/00 H01L 29/22
US Classification:
359344, 257 98
Abstract:
High power, low degree of polarization superluminescent diodes (SLDS) are described. A semiconductor optical amplifier (SOA) which amplifies light in substantially one polarizaton state can be used to create a SLD by combining the output from both sides of this polarization sensitive SOA in a manner which results in a depolarized output.
Method And Apparatus For Co-Axial Alignment Through Non-Coaxial Means
Frankie Rogers - Gaithersburg MD, US Anthony Yu - Spencerville MD, US James Cho - Columbia MD, US Stewart Wilson - Silver Spring MD, US
Assignee:
QUANTUM PHOTONICS
International Classification:
H01J003/14
US Classification:
250/216000, 372/092000
Abstract:
An optical alignment device is provided comprising a base portion extending the length of the alignment device, a substantially horizontal package mounting portion coupled to the base portion, and a component retaining portion coupled to the base portion.
Polarization Maintaining, Large Mode Area (Pmvlma) Erbium-Doped Optical Fiber And Amplifier
The disclosed subject matter relates to a polarization-maintaining very large mode area (PM VLMA) Erbium-doped fiber and a polarization maintaining, Er-doped VLMA amplifier.
Method Of Manufacturing Large Area Graphene And Graphene-Based Photonics Devices
- Washington DC, US Mary J. Li - Bethesda MD, US Anthony W. Yu - Spencerville MD, US
International Classification:
C23C 16/26 C23F 1/00 C01B 31/04
Abstract:
The present invention relates to a method of manufacturing large area graphene for graphene-based photonics devices such as bolometric graphene detectors, or for use as a saturable absorber in ultra-high bandwidth detectors for producing ultrafast laser pulses. The method includes: growing a first graphene layer on one side of a metal substrate, and a second graphene layer on another side of the metal substrate; coating the first graphene layer with a plurality of resist layers including a low molecular weight polymethylmethacrylate, and a high molecular weight polymethylmethacrylate; removing the second graphene layer and the metal substrate to reveal the first graphene layer; disposing the first graphene layer on an optical substrate; and removing the plurality of resist layers from the first graphene layer to reveal a final graphene layer, which can be used as the basis to manufacture a multilayer graphene structure for graphene detectors.