Laser
The laser used for KAGRA is still not fully determined.The following information is just an example.
Here is an excerpt from the manual of the laser, which may be used as the initial laser for KAGRA.
We will use the "Master Oscillator Diagnostics Connector" (section 6.2) and "Amplifier Diagnostics Connector" (section 6.6). We will also use the interlock connector, described in section 5.4.
In the "Master Oscillator Diagnostics Connector", we will use pin 1,2,3,6,7,8,9 and 13.
In the "Amplifier Diagnostics Connector", we will use pin 2,3,4,5,6,7,8 and 9.