STEFAN JOHN MURRY
Pilots at Milford St, Houston, TX

License number
Texas A2458022
Issued Date
Mar 2017
Expiration Date
Mar 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
2007 Milford St, Houston, TX 77098

Professional information

Stefan Murry Photo 1

Vcsel Assembly With Edge-Receiving Optical Devices

US Patent:
6765948, Jul 20, 2004
Filed:
May 15, 2001
Appl. No.:
09/855853
Inventors:
Stefan J. Murry - Houston TX
James N. Baillargeon - Sugar Land TX
Assignee:
Applied Optoelectronics, Inc. - Sugar Land TX
International Classification:
H01S 500
US Classification:
372107, 372 43, 372 50, 372 54, 372 68, 372 97, 372101, 372108
Abstract:
The present invention is directed to a method and system for conditioning the output signals of an array of surface-emitting lasers with an array of edge-receiving optical devices. Both the array of surface-emitting lasers and the array of edge-receiving optical devices are mounted on an optical bench substrate. The array of edge-receiving optical devices may also be monolithically fabricated on the optical bench substrate. The array of surface-emitting lasers and the array of edge-receiving optical devices are aligned by alignment features and slots, which are fabricated on the optical bench substrate so as to optically couple the array of surface-emitting lasers to the array of edge-receiving optical devices.


Stefan Murry Photo 2

Vertical-Cavity Surface-Emitting Laser With Bottom Dielectric Distributed Bragg Reflector

US Patent:
6549556, Apr 15, 2003
Filed:
Nov 30, 2001
Appl. No.:
10/002997
Inventors:
Wen-Yen Hwang - Sugar Land TX
Klaus Alexander Anselm - Sugar Land TX
Stefan J. Murry - Houston TX
Chih-Hsiang Lin - Sugar Land TX
Jun Zheng - Houston TX
James N. Baillargeon - Springfield NJ
Assignee:
Applied Optoelectronics, Inc. - Sugar Land TX
International Classification:
H01S 5183
US Classification:
372 96, 372 43
Abstract:
A metal bonded vertical-cavity surface-emitting laser (VCSEL) structure with a bottom dielectric distributed Bragg reflector (DBR) mirror, and method for fabricating the VCSEL structure. The VCSEL structure consists a metal bonding layer disposed on a submount at a bottom side of the metal bonding layer; a bottom cavity mirror comprising a bottom dielectric distributed Bragg reflector (DBR) disposed within the metal bonding layer, the bottom dielectric DBR having a reflectance band including the lasing wavelength; a bottom current-spreading layer disposed on said bottom dielectric DBR and on a substantially flat, annular top surface of said metal bonding layer; a semiconductor active region disposed on the bottom current-spreading layer, said active region capable of stimulated emission at the lasing wavelength; and a top cavity mirror disposed above the active region and having a reflectance band including the lasing wavelength.


Stefan Murry Photo 3

Reflectively Coupled Zigzag Waveguide Device For Wavelength Locking

US Patent:
2003002, Feb 6, 2003
Filed:
Dec 20, 2001
Appl. No.:
10/029058
Inventors:
Stefan Murry - Houston TX, US
Chih-Hsiang Lin - Sugar Land TX, US
Assignee:
APPLIED OPTOELECTRONICS, INC.
International Classification:
G02B006/26, H01S003/13
US Classification:
385/027000, 385/039000, 372/032000
Abstract:
A zigzag waveguide device-based apparatus and method for achieving or maintaining wavelength lock for a tunable laser designed to generate light at a selected one of a plurality of target wavelengths. The apparatus has a reflectively coupled zigzag waveguide device for receiving a portion of light output by the tunable laser, the zigzag waveguide device having a plurality of filters, each having a passband centered at a respective one of the plurality of target wavelengths, whereby said zigzag waveguide device produces a plurality of filtered light outputs. A plurality of photosensors is provided, one for each of said plurality of filters, each said filter positioned to receive a respective one of the plurality of filtered light outputs, each said filter producing a filter output signal related to the intensity of said portion of light in the passband of the corresponding filter. A processor generates, in response to the plurality of filter output signals, a control signal to adjust the lasing wavelength of the tunable laser to achieve or maintain said selected one of the target wavelengths. In one embodiment, the zigzag waveguide device includes a first waveguide that is coupled to the laser to receive light output. A first wavelength filter is coupled to the first waveguide to receive light therefrom. The first wavelength filter transmits a band of wavelengths and reflecting one or more bands of wavelengths. A second waveguide is coupled to the first wavelength filter and receives light reflected from the first wavelength filter. A mirror is coupled to the second waveguide and receives light from the second waveguide. A third waveguide is coupled to the mirror to receive light reflected from the mirror. A second wavelength filter is coupled to the third waveguide to receive light therefrom. The second wavelength filter transmits a band of wavelengths different from the band of wavelengths transmitted by the first wavelength filter and reflects one or more bands of wavelengths. A first photodiode is coupled to receive light transmitted by the first wavelength filter. A second photodiode is coupled to receive light transmitted by the second wavelength filter. A laser wavelength controller is coupled to the tunable laser and is capable of modifying the wavelength of the tunable laser based at least in part on an output of one of the first and second photodiodes.


Stefan Murry Photo 4

Laser Array Mux Assembly With External Reflector For Providing A Selected Wavelength Or Multiplexed Wavelengths

US Patent:
2013001, Jan 17, 2013
Filed:
Jan 24, 2012
Appl. No.:
13/357130
Inventors:
Jun Zheng - Missouri City TX, US
Stefan J. Murry - Houston TX, US
Assignee:
APPLIED OPTOELECTRONICS, INC. - Sugar Land TX
International Classification:
H04J 14/02
US Classification:
398 87, 398 79
Abstract:
A laser array mux assembly generally includes an array of laser emitters coupled to an optical multiplexer, such as an arrayed waveguide grating (AWG), with an external partial reflector after the multiplexer. Each of the laser emitters may include a gain region that emits light across a range of wavelengths including, for example, channel wavelengths in an optical communication system. The AWG filters the emitted light from each of the laser emitters at different channel wavelengths associated with each of the laser emitters. The reflector reflects at least a portion of the filtered light such that lasing occurs at the channel wavelengths of the reflected light. The laser array mux assembly may be used to generate an optical signal at a selected channel wavelength or to generate and combine optical signals at multiple channel wavelengths.


Stefan Murry Photo 5

Extended Cavity Fabry-Perot Laser Assembly Capable Of High Speed Optical Modulation With Narrow Mode Spacing And Wdm Optical System Including Same

US Patent:
2013001, Jan 17, 2013
Filed:
Jul 6, 2012
Appl. No.:
13/543259
Inventors:
Jun Zheng - Missouri City TX, US
Stefan J. Murry - Houston TX, US
Assignee:
APPLIED OPTOELECTRONICS, INC. - Sugar Land TX
International Classification:
H04J 14/02, H04B 10/04
US Classification:
398 79, 398183
Abstract:
An extended cavity Fabry-Perot laser assembly provides relatively narrow mode spacing while allowing relatively high speed optical modulation. The extended cavity Fabry-Perot laser assembly generally includes an exit reflector physically separated from a laser emitter (e.g., a gain chip) to extend the lasing cavity and narrow the mode spacing while maintaining a relatively small gain region in the laser emitter capable of higher speed optical modulation. The extended cavity Fabry-Perot laser assembly may be used in a multi-channel transmitter in a wavelength division multiplexed (WDM) optical system that selects a channel wavelength for the transmitter from among multiple channel wavelengths emitted by the laser assembly. The narrow mode spacing may be less than a WDM channel width, and more specifically, may be less than a channel passband of an arrayed waveguide grating (AWG) or other filter used to select the channel wavelength.


Stefan Murry Photo 6

Apparatus And Method For Coupling A Fiber To A Photodetector

US Patent:
2006020, Sep 14, 2006
Filed:
Mar 14, 2005
Appl. No.:
10/906964
Inventors:
STEFAN MURRY - Houston TX, US
Assignee:
APPLIED OPTOELECTRONICS, INC. - SUGAR LAND TX
International Classification:
G02B 6/36
US Classification:
385088000, 385092000
Abstract:
A fiber-photodetector coupling apparatus and method for coupling a fiber to a photodetector. A photodetector is mounted on one surface of the platform, with its active region facing an opening in the platform. A fiber inserted into the opening from the opposite surface of the platform is secured in said opening so that its output optical signal is directed onto the active region of the photodetector.


Stefan Murry Photo 7

Method And Apparatus For Coupling A Surface-Emitting Laser To An External Device

US Patent:
2003009, May 29, 2003
Filed:
Jan 9, 2001
Appl. No.:
09/757061
Inventors:
Stefan Murry - Houston TX, US
James Baillargeon - Sugar Land TX, US
Klaus Anselm - Sugar Land TX, US
Wen-Yen Hwang - Sugar Land TX, US
International Classification:
H01S005/00, H01S003/08
US Classification:
372/108000
Abstract:
A surface emitting laser is coupled to an external modulator. The laser and the modulator aligned by photolithographically defined features. In a preferred embodiment, the electromagnetic output of the laser is reflected at a right angle from a mirror mounted on a substrate. The reflected output enters a modulator mounted on the same substrate as the mirror. A circuit coupled to the modulator controls the modulation undergone by the electromagnetic output. The modulated output is coupled to an optical fiber for transmission.


Stefan Murry Photo 8

Method And Apparatus For Reducing Specular Reflections In Semiconductor Lasers

US Patent:
7010012, Mar 7, 2006
Filed:
Jul 26, 2001
Appl. No.:
09/917068
Inventors:
Wen-Yen Hwang - Sugar Land TX, US
Stefan J. Murry - Houston TX, US
Assignee:
Applied Optoelectronics, Inc. - Sugar Land TX
International Classification:
H01S 5/00, H01S 3/08
US Classification:
372 99, 372 92, 372 98, 372 43
Abstract:
The present invention is directed a method of fabricating a VCSEL. First, a substrate with a back surface and a front surface is provided. Then, a first reflector, an active region, and a second reflector are disposed on the front surface. The first reflector is disposed on the front surface. The active region is interposed between the first reflector and the second reflector. Then, anti-reflection features are formed into the back surface of the substrate to reduce specular reflection of light into the active region.


Stefan Murry Photo 9

Modular Laser Package System And Associated Methods

US Patent:
7290943, Nov 6, 2007
Filed:
Sep 8, 2005
Appl. No.:
11/162374
Inventors:
Stefan J. Murry - Houston TX, US
International Classification:
G02B 6/36
US Classification:
385 92, 385 14
Abstract:
A modular laser assembly has a laser-fiber housing comprising a semiconductor laser optically coupled to an end of an optical fiber, the laser-fiber housing having electrical leads electrically coupled to the laser and extending from a front face of the laser-fiber housing; a mounting platform comprising laser interfacing circuitry and contacts electrically coupled thereto, an opening for receiving the laser-fiber housing wherein when the laser-fiber housing is mounted to the mounting platform the electrical leads are proximate and may be electrically coupled to the contacts, and a plurality of pins electrically coupled to the interfacing circuitry and extending laterally from opposing sides of the mounting platform; and a temperature controlling element for mounting to and controlling the temperature of the laser-fiber housing.


Stefan Murry Photo 10

Stefan Murry

Location:
Houston, Texas Area
Industry:
Semiconductors