发明名称 |
System of method for dynamic range extension |
摘要 |
The present invention generally relates to the operation of optical network equipment such as optical amplifiers. In one aspect, a method of operating an optical amplifier is provided such that output of the optical amplifier avoids the effects of operating an optical gain medium in a non-linear (kink) region of an L-I curve. The method generally includes operating an optical gain medium in a fully off state or fully on state above the kink region with a PWM signal. In another aspect, the effects of the kink region may be compensated for by utilizing a lookup table. A sample of the optical power of an amplified optical signal may be used to select an entry in the lookup table that compensates for non-linearities in the kink region. In yet a further aspect, a lookup table may be used to control a pulse modulator to compensate for non-linearites in the kink region of the L-I curve. |
申请公布号 |
US8175127(B2) |
申请公布日期 |
2012.05.08 |
申请号 |
US20100970370 |
申请日期 |
2010.12.16 |
申请人 |
GURUSAMI ARAVANAN;BUTLER DOUGLAS LLEWELLYN;ZAHNLEY TIMOTHY K.;DAHL SCOTT R.;WIGLEY PETER G.;OCLARO (NORTH AMERICA), INC. |
发明人 |
GURUSAMI ARAVANAN;BUTLER DOUGLAS LLEWELLYN;ZAHNLEY TIMOTHY K.;DAHL SCOTT R.;WIGLEY PETER G. |
分类号 |
H01S3/13;H01S3/00 |
主分类号 |
H01S3/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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