I checked some EOM at TAMA.

I found that Yuefan already installed a custom EOM for SHG.

I know the following things.

1) Custom EOM crystal (producted by DELTRONICS Inc.) was assembed into Newport 4003 housing. And then its resonant frequency was tuned to be 15.235 MHz by New Port Inc.

2) To reduce a power density of the passing beam, the crystal has dimensions of 4 x 4 x 40 mm. In addition, holes on the housing were expanded to 4 mm in diameter. Normal New Port EOM 4003 has 2 mm of its aperture.

3) At TAMA site, we have several EOMs as listed bellow.