发明名称 |
SWEEP CONTROL OF AN OPTICAL HETERODYNE MEASUREMENT SYSTEM |
摘要 |
Described herein is a system and method of controlling an optical heterodyne measurement system (1). The measurement system (1) has a tunable laser (9) for generating a local oscillator signal, an optical input (5) for receiving an input optical signal (7) and a mixing module (13) for mixing the local oscillator signal with the input optical signal to generate an output optical measurement signal. One embodiment provides a method including the steps of: a) receiving an input electrical drive signal for driving the tunable laser (9) to produce a laser output having a spectral linewidth and peak central frequency; b) coupling the input electrical drive signal with an electrical linewidth control signal (54) to selectively broaden the spectral linewidth; and c) during a measurement period, selectively tuning the central frequency of the laser in a stepwise manner across a predetermined frequency spectrum at predefined tuning increments. |
申请公布号 |
WO2017019639(A1) |
申请公布日期 |
2017.02.02 |
申请号 |
WO2016US43947 |
申请日期 |
2016.07.25 |
申请人 |
FINISAR CORPORATION |
发明人 |
POOLE, Simon;PULIKKASERIL, Cibby;LI, Qing;CUNHA, Nikhil;ROSENFELDT, Harold |
分类号 |
G01J3/433;G01R23/14 |
主分类号 |
G01J3/433 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|