JAMES MICHAEL WONG
Pilots at Bonita Vis Ln, Santa Rosa, CA
License number
California A5068430
Issued Date
Jan 2016
Expiration Date
Jan 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
3329 Bonita Vista Ln, Santa Rosa, CA 95404
Professional information
Method And Device For Monitoring Light
US Patent:
7957438, Jun 7, 2011
Filed:
Dec 16, 2008
Appl. No.:
12/336081
Inventors:
David Simons - Santa Rosa CA, US
Boris Kharlamov - Santa Rosa CA, US
James Wong - Santa Rosa CA, US
Vincent Issier - Windsor CA, US
Andy Miller - Windsor CA, US
James Nunley - La Forestville CA, US
Boris Kharlamov - Santa Rosa CA, US
James Wong - Santa Rosa CA, US
Vincent Issier - Windsor CA, US
Andy Miller - Windsor CA, US
James Nunley - La Forestville CA, US
Assignee:
JDS Uniphase Corporation - Milpitas CA
International Classification:
H01S 3/13
US Classification:
372 29021, 372 2902, 372 29014, 372 29011, 372 2901
Abstract:
A method for monitoring laser light launched into a core of a single mode fiber includes launching a portion of light directly into the cladding about the core. The cladding launched light is a known fraction of the core launched light and can be monitored by placing a detector about the cladding. Detected light including light that was launched into the cladding and has leaked through the cladding is used as a known fraction of light in the core and can be used to control the laser light source. This can be done with a straight section of single mode optical fiber and does not require bending the fiber. Advantageously, most of the core launched light remains in the core as guided light.