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Spectroscopy Module
Product Manuals - https://www.vescent.com/manuals/
D2-210 Spectroscopy Module with fiber coupling
option
Spectroscopy
Module
Model No. D2-210
Document Revision: 1
Document Last Updated on 2019/06/25 22:53
and
prior to operating the
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Description
The D2-210 saturated absorption spectroscopy module provides error signals derived from saturated
absorption spectroscopy of atomic rubidium, cesium, or potassium. It contains a vapor cell, internal
temperature controller, balanced photodetectors, and optics. Temperature control stabilizes the
number density of atoms in the cell, and a balanced photodetection circuit compensates for intensity
drifts giving stable control over the lock point for side locking applications. The photodiode output is
shot-noise limited out to greater than 5 MHz for photocurrents of 50 μA and above. The high
bandwidth of the feedback enables tight solid locking that is immune to vibrations and shock. The
D2-210 is powered by a cable that plugs into the power connectors on any D2 series electronics
module.
The D2-210 is a significant upgrade to the D2-110 incorporating many suggestions from our
customers:
The module is magnetically shielded to allow close placement to the D2-100 DBR laser module.
An adjustable λ/2 waveplate enables the user to control light level pickoff over a wide range of
input power levels.
In addition to rubidium and cesium, the D2-210 can now be configured with potassium.
Ordering options exist for Doppler subtraction and fiber coupling.
Future ordering options will include lock signals derived by DAVLL and Zeeman Modulation
spectroscopy.
Purchase Includes
D2-210 Spectroscopy Module
VPN00463 SMA cable (6ft)
VPN00410 Hirose-to-D Sub 9-pin (shipped under separate line item; specify for use with D2)
VPN00475 Hirose-to-Hirose power cord (shipped under separate line item; specify for use with
ICE)
VPN00367 Adjustment tool
