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Avesta Ltd.
P. N. Lebedev Physical Institute,
Laboratory building,
Troitsk, 142190,
Moscow region,
Russian Federation

Tel: +7 495 967 94 73
Tel: +7 496 751 00 78
Fax: +7 495 646 04 95

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  Optical Chopper OCV-10kFD | Optical Chopper OCV-4500F | Optical Chopper OCV-4500 |

Optical chopper
Model: OCV-10kFD

High frequency range (1 Hz – 10.5 kHz) *
High frequency stability (<100ppm) *
Low phase jitter (<0.6° rms, 1 kHz) *
Phase shift ±180° *
External frequency capture *
Ñhopping on harmonics and sub-harmonics *
PC synchronization (COM è USB) *

 
 

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The OCV-10kFD opto-mechanical modulator (chopper) is widely used in different optical experiments. It comprises a microprocessor control unit and precise Swiss drive. The device features harmonic and subharmonic generator, sync input and output ports, and PC USB connection.
 
OCV-10kFD
Frequency range, Hz 1-10500
Chopping frequency with 2/100-slot blade*, Hz (1 – 160) / (50-8000)
Chopping frequency with 10-slot blade, Hz 20-1400
Chopping frequency with 60-slot blade, Hz 100-8000
Chopping frequency with 100-slot blade**, Hz 500-10500
Phase instability peak-to-peak (standard), º 3 (0.6)
Phase instability peak-to-peak (standard), at 1 kHz 3 (0,6)
Input/output BNC signal level TTL/CMOS
Internal generator frequency range, Hz 0,001 - 1000000
Minimum reference pulse duration, ns 45
Phase shift range, º -180 - +180
Phase shift step, º 0,1
External frequency range, Hz 4 – 1657500
External reference multiplier (harmonics) 1-255
External reference divider (subharmonics) 1-255
Controller unit dimensions, mm 255õ205x85
Power supply voltage 47-63 Hz, V 110-220
Power consumption, W <30
* - the blade has 100 slots on external circle and 2 slots – on internal one. The frequency is stabilized on external circle (high frequency), but optical beam is chopped on internal one (low frequency). The phase shift range is from -180° to +180° according to the high frequency (on external circle).
** - the optical aperture with a 100-slot blade is 1.5 mm



  
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