Karmeng, Terry

First figure shows the cavity "mode" when it was first assemble. Single pass power measurement shows 5% loss in the crystal (without mirrors). Based on the cavity parameter, the 500% increase in cavity linewidth is caused by 40% loss in the cavity.

We then tried to assemble a cavity without a crystal while using a mirror mount (the reduced cavity length from the removal of crystal is compensated by increasing the separation between both mirrors). The cavity forms good modes.

A new crystal from box labeled "4" was used on a new block, able to form a cavity with the new crystal.

Next step: make a cavity with mirror 2 (back mirror) on the block.