BPD-002 Balanced Photodetector

InGaAs Photodetector; 1060, 1310, 1550 nm; Aluminium Enclosure; Responsivity >0.5->0.8 mA/mW; RF Bandwidth 0-200 MHz; Transimpedance Gain 100×103 V/A OCT and sensor systems require high performance balanced photodetectors to boost system signal-to-noise ratio (SNR). General Photonics’ BPD-003 OEM balanced photodetector module is specially designed for OEM applications in such fields, engineered for low cost and small size as well as high performance. The BPD-003 device consists of an optical head and a post-amplification board with an SMA or SMB RF output connector. The optical head has two input fibers aligned with a pair of matched photodetectors, selected for high CMRR and sensitivity, followed by an integrated low-noise transimpedance amplifier (TIA) placed immediately after the photodetectors to amplify received signals with low noise and enhanced CMRR. The integrated post-amplification circuit further conditions and amplifies the output of the detectors to a range of ± 3.5 V maximum. With a bandwidth of up to 200 MHz and a high conversion gain, the BPD-003 is ideal for integration into OCT, fiber sensor and high-performance optical measurement systems. Key Features: Very Low Noise Excellent Common Mode Rejection Ratio (CMRR): >15 (40 to 200 MHz), >35 dB (DC to 40 MHz) Photodetector Type: InGaAs Photodetector Responsivity: >0.5 to >0.8 mA/mW High Conversion Gain: >50 to >80 x 10³ mV/mW Wide RF Output Bandwidth: DC to 200 MHz Wavelength Range: 1060, 1310 or 1550 nm ±50 nm Polarization Dependent Loss (PDL): <0.2 dB Return Loss (RL): >45 dB Maximum Input Power: 10 mW Transimpedance Gain: 100 x 10³ V/A Fiber Type: SMF-28, HI1060 Compact Size: 49.5 x 21.6 x 16.5 mm Applications: Sensor Systems; Optical Coherence Tomography (OCT) Systems; Optical Measurement Systems; Fiber Sensing Interrogator; Instrumentation; Research and Development

1260-1650 nm; Delay Range >3 mm; RL >65 dB; Fiber Type SMF-28, Other; IL <0.2 dB; PDL <0.05 dBGeneral Photonics’ FST-001 is a piezo-driven fiber stretcher with an optical delay range of up to 3 mm. The device, including the piezo driver, is packaged in a metal enclosure.Each of the FST-001 fiber stretcher’s four piezos can be controlled independently, allowing high resolution or large stroke. Piezos can be controlled with an analog signal or a 12-bit TTL signal.Under analog control, the driving circuit acts as a 4-channel voltage amplifier with 30V/V amplification. Alternatively, the output voltage can be controlled by a computer equipped with a digital I/O card, or by a microprocessor.Key Features: Large Optical Path Delay Range: >3 mm (In Air)High SpeedLow Insertion Loss (IL): <0.2 dBAnalog and Digital ControlAnalog Input: 4 Channels, 4.7 V Maximum For Each ChannelDigital Input: 20-pin Connector, 12-bit TTL Control SignalOperating Wavelength: 1260 to 1620 nmMaximum Optical Power: 1,000 mWPhase Change Sensitivity: 810 π/VInternal Voltage Amplification: 30 V/VMaximum Voltage on Piezo: 140 VResonance Frequency: 2.2 ±0.3 kHzReturn Loss (RL): >65 dBPolarization Dependent Loss (PDL): <0.05 dBFiber Type: SMF-28, Other on Request Dimensions: 170 x 106 x 39 mmApplications: Sensors; Interferometers; Medical Imaging; Spectrum Analysis; OCT.