- Specifications
- Functionality Overview
Functionality Value Unit Comment Scan function Scan frequency 0.1 Hz - 33 MHz Bandwidth limited on some channels Waveform types Sine, triangle, square, sawtooth PID function 1 Signal latency 200 ns ADC and DAC latency included Parameters P, I, D, I cut-off PID function 2 Signal latency 200 ns ADC and DAC latency included Parameters P, I, D Analog P function Bandwidth 21 MHz (-3 dB, -200° phase) Lock-In function Modulation frequency 12 Hz - 781 kHz Pound-Drever-Hall function Modulation frequency 1.56, 3.13, 6.25, 12.5, 25 MHz - Input Channels
Input Channels Resolution Sample rate Bandwidth Range Impedance Comment (bit) (Hz) (-3 dB) (Hz) (V) (Ohm) Main in 14 100 M 14 M ± 2.1 50 Input signal at has to be between ± 3.5V; it can be shifted with the and amplified with the PGA
Aux in 14 100 M 15 M ± 2.1 50 Precise in 16 200 k 50 k ± 2.0 10 k DCC Iact 16 100 k 15 k ± 13.1 40 k SYS DC 110 backplane DTC Tact 16 100 k 15 k ± 13.1 40 k SYS DC 110 backplane AIO 1 in 16 100 k 15 k ± 12.5 47 k Normally used as output AIO 2 in 16 100 k 15 k ± 12.5 47 k Sum in 27 M ± 1.0 50 Bandwidth between and - Output Channels
Output Channels Resolution Sample rate Bandwidth Range 50 Ohm Comment (bit) (Hz) (-3 dB) (Hz) (V) driver Main out 14 100 M 19 M ± 1.0 Yes Sum of and Analog P branch Aux out 14 100 M 19 M ± 1.0 Yes SC 110 out 21 100 k 18 k ± 6.5 No SYS DC 110 backplane; amplification by 15 with SC110 DCC Iset 21 100 k 18 k ± 6.5 No SYS DC 110 backplane DTC Tset 16 100 k 18 k ± 6.5 No SYS DC 110 backplane AIO 1 out 16 100 k 16 k ± 6.5 No AIO 2 out 16 100 k 16 k ± 6.5 No Normally used as input Error out 20 M ± 1.7 Yes Error out = (+ ) x Gain/2; bandwidth between and
TRIG 0, 2.6 Yes - General
- Functionality Overview
- Additional Information
The DigiLock 110 module makes laser locking easy. Many supporting features help beginners and experts alike. After selecting a slope or peak in a spectrum, the software can trace this feature in consecutive scans of the laser. With a mouse click, the laser scans to the desired lock point and activates the lock, exactly where the user wants it. 
The DigiLock 110 module offers both Lock-In and Pound-Drever-Hall techniques for top-of-fringe locking. Both techniques work with modulating/demodulating the laser frequency and the measured photo diode signal. The modulation frequencies are variable and reach up to 780 kHz for the Lock-In module and up to 25 MHz for the Pound-Drever-Hall module. These high modulation frequencies allow for a higher locking bandwidth and therefore a more stable lock. - Applications
- Downloads
Software
Free software downloads of the latest DigiLock software. For evaluation purposes, the software can be installed and tested without a DigiLock module connected.- DigiLock Software Version 1.6.0.121 (260 MB)
- DigiLock Software Readme File
- DigiLock Manual (Software Version 1.6.0.121)
- DigiLock Remote Control Software Rev. 935 (4.6 MB, no support)
- DigiLock Remote Control Software Readme File
- DigiLock Remote Control Software Manual (Rev. 935)
Tutorials
Part 1 - Introduction
Part 2 - Basic locking
Part 3 - Advanced locking - Literature
- Application Note: Diode Laser Locking and Linewidth Narrowing
- Application Note: 12 orders of coherence control
- Application Note: Trapping and quantum computing
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