The Absolute and Relative Jump functions of the D2-125 Reconfigurable Servo are designed to allow the user extensive control over the Servo Out signal. In this application note, we demonstrate the capability to jump from a lock point to another feature in the error signal spectrum and to recapture lock at this new lock point.

We make use of the Absolute Jump feature of the D2-125 to jump the laser approximately 250 MHz from one ⁸⁷Rb hyperfine transition to another and relock the system on the new transition.

Read Application Note

The D2-125 Reconfigurable Servo features a full PI ²D loop filter transfer function with highly adjustable corners and gain over a control bandwidth of DC to 10 MHz. It has a built-in ramp feature and an auxiliary servo output for controlling an "outer" loop, keeping the main "inner" loop within its control range for extended periods of time.

The D2-125 also offers the Absolute and Relative Jump features discussed above to allow the User to stop the loop filter action and force a specific voltage value at the Servo Output.

•  Precise Time and Time Interval (PTTI)
• Reston, VA; 29 January-1 February
• Erlangen DPG
• Erlangen, Germany; 5-9 March
• The American Chemical Society Meeting
• New Orleans, LA; 18-20 March
• Conference on Lasers and Electro-optics (CLEO)
• San Jose, CA; 15-17 May
• The APS Division of Atomic and Molecular Optical Physics (DAMOP)
• Fort Lauderdale, FL; 28 May-1 June
• The International Conference on Atomic Physics (ICAP)
• Barcelona, Spain; 22-27 July
• The European Conference on Trapped Ions (ECTI)
• Rehovet Israel; 18 November

Contact Vescent

Our new line of precision photonics control electronics is reaching maturity and we will begin shipping in 2018.  SLICE will be a complete line of laser controllers, servos, current sources, & low-noise, high-bandwidth amplifiers.  SLICE products will feature a large touch screen for easy interface as well as a PC-resident GUI and serial command control. They will offer user-programmed I/O, low-jitter timed events, and a host of other convenient features.

The first SLICE product to hit the streets will be the SLICE-QT, a four-channel temperature controller designed for sub-milliKelvin stability.  It will find application in stabilizing diode lasers, photonic crystals, and mechanics which require nanometer-scale positioning stability.  For non-linear crystals, slew rate control prevents too rapid a change in temperature which could lead to depoling of expensive materials. Each of the four independent channels can be allocated its share of 40 W of stabilization power. SLICE-QT will control either TECs or resistive heaters and can accept an external error signal.

We are extending our promotional offers * through the end of January for a $500 discount on the pre-order of a SLICE-QT or a free SLICE-QT with the purchase of any high-power laser system from Vescent Photonics.

Learn more about SLICE

* Terms and conditions do apply.