LIR 110 – Versatile Lock-In Regulator
- Module for top-of-fringe laser stabilization
- Error signal generation by frequency modulation
- Modulation frequency 0.6 Hz – 14 kHz, adjustable
- PID controller included
- Adjustable lock-in bandwidth
The lock-in regulator LIR 110 is a versatile tool for the scientific laboratory. It can be employed both for lock-in detection and for various controller tasks, e.g. to lock a diode laser to a maximum absorption or transmission of a reference medium. The LIR 110 comprises a modulation source, a signal input buffer and subsequent input amplifier, a phase-sensitive detection unit to generate a dispersive error signal and a PID regulator.
Technical Information
Technical Information
LIR 110 block diagram
Specifications LIR 110
- Top-of-fringe frequency stabilization
- Modulation frequency 0.6 Hz - 14 kHz
- Modulation amplitude: maximum ± 5 V
- Sine or sawtooth modulation
- Adjustable lock-in bandwidth (16 mHz – 16 kHz)
- Variable input amplifier gain (1 – 3000)
- Potentiometer for continuous phase adjustment
- Proportional, integral and differential distribution continuously adjustable (separately or combined)
Accessible Parameters
- Internal Ramp/Modulation, switch ON/OFF, adjustable frequency, offset and amplitude
- Current and voltage Lock-In amplifier mode
- Adjustable filter frequency
- Phase control in 90° steps and precision fine adjust with precision trimmer
- Adjustable signal gain (fixed and variable amplitude mode switch)
- Relock-mechanism (automatic search for the next stabilization mode) when stabilizing on external resonators, FPI´s etc., indicated by red relock-LED
- P, I, D -contribution of the control loop can be adjusted by precision trimmer
- Normalization selectable by ON/OFF switch
- Regulator ON/OFF switch, filter ON/OFF switch
- HF-tight cassette, width 24 TE (120 mm)
Input / Outputs
- BNC socket for actual signal in and BNC socket for LIR output voltage
- BNC socket for trigger out of internal modulation for external synchronization
- BNC socket for buffered monitor signal: signal in, signal amplified, signal normalized, signal filtered, phase, PSD, low pass, regulator out, LIR out
Options & Related Products
Options & Related Products
Related Products:
| PID 110 | LIR 110 | PDD 110 | FALC 110 | DigiLock 110 | LaseLock | Wavelength Meter | Iscan | |
|---|---|---|---|---|---|---|---|---|
| Description / type | Analog PID | Analog Lock-In Regulator | Pound-Drever- Hall Signal Generation | Fast Analog 2-Channel PID | Versatile Digital Locking Solution | Suited for third party lasers | Wavelength meter with PID option | Low finesse etalons as reference with Lock-Electronics |
| Side-of-fringe | • | • | • | • | Not applicable | |||
| Top-of-fringe | With PDD | • | • | With PDD | • | • | ||
| Locking bandwidth* | kHz .. MHz | kHz range | ≈ 45 MHz | ≈ 10 MHz | 1 MHz | < 100 Hz | kHz range | |
| Modulation frequency | 0.6 Hz .. 14 kHz | 20 MHz ** | 17 Hz .. 25 MHz | 33 Hz .. 1 MHz | Not applicable | |||
| Accuracy | Depends on reference (can be very good) | > 10 MHz | 1 MHz (relative) | |||||
| Signal analysis | • | |||||||
| Relock mechanisms | • | • | • | • | • | |||
| Computer control | • | • | • | |||||
| High voltage output | • | • | • | |||||
| High bandwidth output | • | • | ||||||
| Two channel version | • | |||||||
| SYS DC 110 module | • | • | • | • | • | |||
| Stand-alone | • | • | • | |||||
| low budget | high end & preferrable | |||||||
*Estimated bandwidth depends on gain and PID settings **5- 40 MHz versions available
- DigiLock 110: Digital feedback controlyzer for most flexible and comfortable laser locking and analysis
- FALC 110: High bandwidth multi-channel PID for linewidth narrowing
- PID 110: Flexible PID regulator
- SC 110: HV scan controller, can be used as a HV amplifier for LIR output
- LaseLock: Stand-alone locking solution
- Tunable diode lasers, high power diode lasers, and frequency converted diode lasers: these can conveniently be locked with LIR 110
- FPI 100: Fabry-Perot interferometer and detector unit
- Wavelength meters for convenient and precise wavelength measurement
