Tunable Semiconductor Laser TSL-770
6-3
Coherence Control increases spectral linewidth of output light. Coherency of output
light is reduced by this function, and uctuation of optical power by interference can be
suppressed.
If uctuation of optical power becomes a problem due to inuence from reecting point
in a system using the device, use the function.
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How to set
1. Touch MENU and MOD to move to modulation setting screen.
2. Select “Coh.Ctrl” in Source pull-down menu, and turn State ON.
3. “Coh.Ctrl” lights up on the right edge of the screen.
6-2 Coherence Control