D2-Series
Atom Trapping DFB Lasers and Control Electronics
Copyright 2007 Vescent Photonics, Inc. All rights reserved
DFB laser system comprising: i) electronics modules (background, left to right) laser servo, power supply, and laser controller, and ii) optical modules (foreground, left to right) spectroscopy module and DFB module (includes optical isolator on the left and DFB housing on the right).
Are your lasers as easy to use as your oscilloscope?
Our DFB laser system was designed by atom-trapping experts for atom-trappers. With the stability inherent to DFB lasers and our integrated spectroscopy modules, the lasers will be the easiest part of your cold-atom experiments. The D2 series DFB laser system is a complete turn-key laser system; you get everything you need to go from box to locked in under 1 hour. Leave the lasers to us so you can focus on cold-atom science.
Modular turn-key laser system including laser module, laser controller, spectroscopy module and locking electronics (laser servo).
Rugged, stable tuning over the entire rubidium hyperfine spectrum.
Output power (typical) of 40 mW with 1 MHz linewidth.
Laser servo can be used for both peak locking (e.g., for repump or probe laser) and side locking (e.g., MOT laser).
Expandable with soon-to-come modules for frequency-offset locking in
master/slave configuration.
Includes a 780 nm DFB laser diode, collimation / circularization optics, and optical isolator. Two stages of temperature control give maximum stability.
D2-110, Spectroscopy Module
Contains a saturated-absorption spectrometer and a 12 MHz, shot-noise-limited photo-detection circuit. Temperature control of the rubidium cell and laser power normalization minimizes lock point drift.
Based on an ultra-low-noise design (Libbrecht and Hall, ‘93) with <100 nA rms current noise (below 1 MHz), 1 microA/°C temperature stability, and > 10 MHz current modulation servo input. Contains two temperature controllers to give 1 mK temperature stability.
A fast transfer function tailored to the DFB laser ensures the fastest challenges are removed. Double integrators give high DC gain and stability. Can be set to side lock mode or peak lock mode. 4 MHz FM sideband modulation in peak lock mode preserves system bandwidth and enables the laser servo to be used for Pound-Drever-Hall locking to optical cavities.
An external, low-noise linear power supply keeps 60 Hz and harmonics off your signals. This power supply may be used to drive up to four electronics modules.
