- Master laser locked to spectroscopy
- Slave offset phase locked to master
- Offset tuning from 250 MHz to >9.5 GHz
- Electro-optics fit on 1 ft2 of table space
- Demonstration video
A D2-100-DBR master laser is locked to a Doppler-free hyperfine transition of an alkali metal using the D2-210 Saturated Absorption Spectroscopy Module and the D2-125 Reconfigurable Servo. A D2-100-DBR slave laser and the master laser are sampled and beat against each other in the D2-250 Heterodyne Module. The optical beat note is coupled into a MM fiber and delivered to the D2-160 Beat Note Detector where it is down-converted to an rf beat note. The D2-135 Offset Phase Lock Servo locks the slave laser offset to a stable, tunable rf reference. The excellent stability of the system can be seen above on the right.
≥ 9.5 GHz of frequency tuning referenced to an atomic transition. From box-to-lock in an hour. Only from Vescent Photonics.