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Free Space Acousto-Optic (AO) Standing Wave Mode Lockers
The Brimrose Free Space Acousto-Optic (AO) Standing Wave Mode Lockers, with corresponding RF Variable Frequency drivers, are designed so the frequency matches the customer's laser resonant cavity longitudinal mode frequencies.
WhatsappOverview
The Brimrose Free Space Acousto-Optic (AO) Standing Wave Mode Lockers, with corresponding RF Variable Frequency drivers, are designed so the frequency matches the customer's laser resonant cavity longitudinal mode frequencies. It is necessary to adjust the resonant laser cavity mode spacing frequency to be equal to twice the original acoustic wave frequency to achieve mode locking.
The mode-locking technique is actually a phase locking process, connecting the various longitudinal modes by fixing the relative phase differences among them.
Key Features
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Good Modulation Depth
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Small Size
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UV/VIS Optical Range
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Suitable for High-Powered Lasers
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Good Operating Stability of the Laser
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Lower Noise Performance
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High Modulation Bandwidth
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Analog Light Intensity Modulation
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Air, Water or Thermoelectrically Cooled
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Laboratory Version
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Custom Configurations Available
Applications
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Photonic Sampling
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Femtosecond Laser Micromachining
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Corneal Surgery
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Nonlinear Optics
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Optical parametric oscillators
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Optical Data Storage
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OEM Designs
Technical Specifications
| Model # | FSML-40-20-BR-800 | FSML-80-20-BR1064 | FSML-125-30-BR800 | FSML-125-30-BR1064 |
|---|---|---|---|---|
| Substrate | Fused Silica | Fused Silica (Uncoated) | ||
| Laser Wavelength | Brewster Cut optimized for horizontal polarization at: | |||
| 800 nm | 1064 nm | 800 nm | 1064 nm | |
| Active Aperture | Up to 5 x 5 mm | |||
| Carrier Frequency | 40 MHz | 80 MHz | 125 MHz | 125 MHz |
| Modulation Rate | 80 MHz | 160 MHz | 250 MHz | 250 MHz |
| 3dB Bandwidth | ± 50 | ± 10 | ± 15 | ± 15 |
| Optical Transmission | 99.7% | |||
| Resonant Modulation Depth | 70% | 60% | 50% | 30% |
| Acoustic Velocity | 5.96E+3 m/sec | |||
| Wave Front Distortion | λ/10 | |||
| Input Impedance | 50 ohms | |||
| Maximum Electric Input Power * |
5 – 7 Watts | |||
| V.S.W.R. | N/A | |||
| Case Type | Water cooled | |||
* The exact amount of RF power will be defined during final testing of fabricated device.
Wavelength range is from 600 to 1550 nm or Broadband AR Coating and RF Frequency Ranges are available upon request.
