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(12) PATENT APPLICATION PUBLICATION
(19) INDIA (21) Application No.: 00899/KOLNP/2005 A
(22) Date of filing of Application: 16/05/2005 (43) Publication Date: 09/06/2006
(54) Title of the invention: A METHOD AND DEVICE FOR SAFETY CONTROL OF OPTICAL AMPLIFICATION
(51) International classification : G02F 1/39, H01S
3/00
(31) Priority Document No : 02145220.2
(32) Priority Date : 08/11/2002
(33) Name of priority country : CHINA
(86) International Application No and : PCT/CN03/000938
Filing Date
: & 07/11/2003
(87) International Publication No : WO 04/042467
(61) Patent of addition to Application No : NA
Filed on : NA
(62) Divisional to Application No : NA
Filed on : NA
(57) Abstract:
A method for safety control of optical amplification comprising;
detecting output power and reflection power of an optical amplifier,
and calculating a reflection coefficient and reflection power;
determining if the reflection coefficient and the reflection power
exceed a given threshold, if yes, performing safety control of the
optical amplifier and adjusting the output power of the optical
amplifier under a safety value and keeping on power detection; if no,
determining if an optical power adjustment is necessary, or else
keeping on power detection. Comparing with the prior arts, the
present invention makes progress of providing safety protection
method for apparatus with high light output, actualized the effect of
automatically controlling power of the amplifier (or other apparatus
with high light output) by detecting the output reflection coefficient,
so as to provide the apparatus or staffs with more safety protection.
(FIG). 5
(71) Name of Applicant:
ZTE CORPORATION.,
Address of the Applicant:
ZTE PLAZA, KEJI ROAD SOUTH, HI-
TECH INDUSTRIAL PARK, NANSHAN,
DISTRICT, SHENZHEN, GUANGDONG
PROVINCE 518057, CHINA.
(72) Name of the Inventor:
WANG, JIAYING
Filed U/S 5(2) before The Patents (Amendment)
Act, 2005: NO
The Patent Office Journal 09/06/2006 11045