RTP Pockels cell
The RTP (RbTiOPO₄) Pockels cell, also called a rubidium titanyl phosphate Pockels cell, offers good overall performance and is widely used in electro-optic laser modulation, pulse shaping and intracavity Q-switching. It provides strong electro-optic performance, a large electro-optic coefficient, a high optical damage threshold, excellent chemical stability, high electrical resistivity, a low piezoelectric effect and resistance to deliquescence. Compared with other electro-optic materials, RTP Pockels cells offer non-hygroscopicity, low switching voltage, good extinction and no piezoelectric or pyroelectric effects. Applications include RTP Q-switches and RTP pulse pickers.
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Overview
The RTP (RbTiOPO₄) Pockels cell, also called a rubidium titanyl phosphate Pockels cell, offers good overall performance and is widely used in electro-optic laser modulation, pulse shaping and intracavity Q-switching. It provides strong electro-optic performance, a large electro-optic coefficient, a high optical damage threshold, excellent chemical stability, high electrical resistivity, a low piezoelectric effect and resistance to deliquescence. Compared with other electro-optic materials, RTP Pockels cells offer non-hygroscopicity, low switching voltage, good extinction and no piezoelectric or pyroelectric effects. Applications include RTP Q-switches and RTP pulse pickers.
Specifications
| Parameter | Value |
|---|---|
| Operating range | 500-3000nm |
| Transmittance | >98.5% |
| Extinction ratio | 30dB |
| Acceptance angle | <4° |
| Standard Antireflection coating [@1064nm] | R<0.1% @1064nm |
| Damage Threshold [@1064nm] | 600MW/cm² 10ns 10Hz @1064nm |
| Transmittance at 1064nm | >98.5% |
| Available aperture | 3,4,5,6,7,8,9,10,11,12mm |
| 1064nm Half-Wave Voltage | 1000V(3×3×10+10) |
| Extinction ratio | >23dB |
| Acceptance angle | >1° |
| Damage Threshold [@1064nm] | >600MW/cm² 10ns @1064nm |
| Temperature range for stable performance | -50℃~+70℃ |
| 1064nm Static Half-Wave Voltage | 4x4x20mm: 1600V |
| 1064nm Static Half-Wave Voltage | 6x6x20mm: 2400V |
| 1064nm Static Half-Wave Voltage | 9x9x20mm: 3600V |
| Electro-optic constant r₃₃ [Y-cut] | r₃₃=38.5pm/V |
| Electro-optic constant r₃₃ [X-cut] | r₃₃=35pm/V |
| Electro-optic constant r₂₃ [X-cut] | r₂₃=12.5pm/V |
| Electro-optic constant r₁₃ [X-cut] | r₁₃=10.6pm/V |
Key Features
High electrical resistivity; high extinction ratio; low half-wave voltage; high optical-damage threshold. Operating temperature of -50~70 ℃ without temperature control. Suitable for high-frequency operation, with a maximum switching frequency of 1 MHz. Applicable wavelength range: 450 nm – 3 μm; device extinction ratio >23 dB. Dynamic and static half-wave voltages are essentially consistent, with easy installation and adjustment. Crystal damage threshold of 1 GW/cm² @1064 nm for 10 ns pulses. Good internal crystal quality and low optical absorption; total transmittance of the two crystals >5%. Extremely low ringing during high-frequency operation, far below that of BBO electro-optic Q-switches. Nondeliquescent crystal with low dielectric constant, excellent electrical stability and long-term tolerance of applied voltage. Compact dimensions and low operating voltage suit new fiber- and disk-laser applications. Very low total capacitance of the two crystals: 2-3 pF for 5 mm-long crystals or 3-4 pF for 10 mm-long crystals, enabling pulse rise/fall times of 5-5 ns.
Datasheet
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Supplier Information
Shanghai Crylink Technology Co., Ltd. was jointly established by Shanghai Yangtze Delta Innovation Institute, Baoshan District state-owned platform, and Dr. Yongjun Dong's team. Located in Baoshan High-tech Industrial Park, the company focuses on R&D and production of laser materials and devices. Main products include laser crystals, nonlinear crystals, bonded crystals, and devices, with full-chain capabilities from crystal growth, optical polishing, laser coating to device packaging. Its subsidiary, Nanjing Guangbao Optoelectronics Technology Co., Ltd., operates the 'Meta-laser' and 'Guangbao Optoelectronics' brands. Products are widely used in laser processing, medical aesthetics, LiDAR, optical communications, defense, scientific research, aerospace, and other fields.
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