Pound-Drever-Hall detection scheme
PDD 110/F
Pound Drever Hall Module
- Module generates a dispersive error signal
- Serves for high bandwidth top-of-fringe laser locking
- Error signal generation by frequency modulation
- Modulation frequency adjustable 12 - 35 MHz
- Dual channel versions available
The Pound-Drever-Hall detector PDD 110/F serves to lock a diode laser to a maximum absorption or transmission of a reference medium (e.g. an optical resonator). The PDD 110/F features an internal HF modulation source for modulating the diode laser frequency. The signal from the reference is detected and demodulated phase sensitively to produce a high bandwidth dispersive error signal that can be used to lock the laser using a PID controller.
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Specification
PDD 110/F Modulation frequency 20 MHz standard, adjustable 12 - 35 MHz (other frequencies on request) HF output amplitude 1 Vpp (+4 dBm) @ 50 Ω, more on request Second harmonics suppression Optional low pass filter normally not recommended Phase adjustment 0° .. 190° plus inversion (±180°) Bandwidth / delay Signal delay 12 ns total - Additional Information
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Options
- A two channel version PDD 110/Dual is available for generating two independent error signals with one common modulation frequency. It can be used for example to lock the laser to a cavity and both to an atomic absorption at the same time.
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Applications
- Metrology
- Cavity ring down spectroscopy
- Resonant enhancement for frequency doubling
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Downloads
- Product Brochure Scientific Lasers (please see website for latest specs!)
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Literature
- Application Note: 12 orders of coherence control
- Application Note: Trapping and Quantum Computing
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Related Products
- PDH/DLC pro: Built-in module for DLC pro with similar functionality as this module
- FALC pro: High performance PI3D2 regulator for linewidth narrowing, external module of DLC pro
- FALC 110: High bandwidth multi-channel PID for linewidth narrowing
- DigiLock 110: Versatile digital module for computerized locking tasks
- ECDL/DFB diode lasers, high power diode lasers and frequency converted diode lasers can conveniently be locked with PDD 110
- FPI 100: Fabry-Perot interferometer and detector unit
- Wavelength meters
