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These high-speed photodetectors were designed to offer the ideal combination of high-speed performance (up to 25 GHz) and optical-input flexibility. They show flat response in both amplitude and phase up to 25 GHz and are optimized for frequency-domain applications.
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TAOS Inc’s Light-to-Voltage (LTV) solutions combine a photodiode and transimpedance amplifier on a single monolithic IC. The LTV family provides a linear analog voltage output that is proportional to light intensity which is normally fed to an ADC for digital processing. This output can be connected directly to an ADC for digital processing, a comparator for thresholding or other analog circuitry for filtering or further processing.
The devices cover a wide range of speed and responsivity options across different spectral responses to span a variety of applications to measure ambient light, light absorption or reflection, and as an infrared data receiver in light controls, printers, light curtains or remote controllers. A summation CHART is avaialble fo
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RMT offers coordinated pairs (solid state light emitter and photodetector) suitable for application in non-dispersive infra-red (NDIR) gas analyzers and optical sensors.
The pairs consist of high effective photodetector and special solid state pulsed light emitter.
The spectral responses of the photodetector and light emitter are coordinated for effective operation at absorption lines of measuring gases.
Additional built-in narrow band filters integrated onto photodetector (or/and light emitter) provide high selectivity of measuring schemes.
Standard options of the optopairs are suitable for analyzing of CO2 (carbon dioxide), CH4 (methane), hydrocarbons mixtures.
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HAMAMATSU realized MSM (Metal-Semiconductor-Metal) photodetector having ultrafast response. The GaAs MSM Photodetector G4176 features 30 ps response time for both rise and fall while keeping a low dark current (100 pA at Ta-25 °C). The rise time of the InGaAs MSM Photodetector G7096 is 40ps. Symmetrical and interdigital Schottky contacts are fabricated at the sensitive area, whose size can be larger than other kinds of fast response photodetectors. This makes easier to set up with optics. Therefore, MSM photodetectors are suited for measurements of optical high-speed waveform and optical communications. There is no electrical polarity in MSM photodetectirs, that is, both polarities of a bias voltage are available, and the polarity of an output signal depends on its connection. Two kinds of packages are prepared for each MSM photodetector. The package of G4176 & G7096 is a coaxial metal type (patent : Japan 2070802), which is easy to connect with an electrical SMA-connector. That of G4176-01 & G7096-01 is a TO-18, which is very common. An optical fiber or connector input types are available as a custom option. Contact your local representative for more information.
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Various packages available:
- SFH 5110: IR remote control receiver (30, 33, 36, 38, 40kHz)
- SFH 5140 F: Schmitt-Trigger IC in Miniature Sidelooker Package with Lens
- SFH 5410: IR remote control receiver (36 and 38kHz)
- SFH 5440: Schmitt-Trigger IC in Smart DIL Package
- SFH 5840: Schmitt-Trigger IC in TO-18 Package with Glass Lens
- SFH 5711: High accuracy Ambient Light Sensor in SMT Chipled
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Toshiba photosensors and photointerrupters are widely used in the market today. The advanced Toshiba packaging technology allows the company to introduce compact devices, which are popular in the consumer electronics product market. Toshiba is among the pioneers in introducing illuminance sensors (a.k.a. ambient light sensors). These light sensors are now used in many mobile devices such as cell phones and other consumer electronic products.
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The TSL2561 is a light-to-digital converter that transform light intensity to a digital signal output capable of direct I2C (TSL2561) interface. Each device combines one broadband photodiode (visible plus infrared) and one infrared-responding photodiode on a single CMOS integrated circuit capable of providing a near-photopic response over an effective 20-bit dynamic range (16-bit resolution). Two integrating ADCs convert the photodiode currents to a digital output that represents the irradiance measured on each channel. This digital output can be input to a microprocessor where illuminance (ambient light level) in lux is derived using an empirical formula to approximate the human eye response. The TSL2561 device supports a traditional level style interrupt that remains asserted until the firmware clears it.
* Approximates Human Eye Response
* Programmable Interrupt Function with User-Defined Upper and Lower Threshold Settings
* 16-Bit Digital Output with I2C Fast-Mode at 400 kHz
* Programmable Analog Gain and Integration Time Supporting 1,000,000-to-1 Dynamic Range
* Automatically Rejects 50/60-Hz Lighting Ripple
* Low Active Power (0.75 mW Typical) with Power Down Mode
* RoHS Compliant
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TAOS Inc’s Light - to- Digital Converters combine a broadband photodiode (350 nm to 1100 nm) with a visible light blocking photodiode in a single CMOS integrated circuit. With integrated analog-to-digital conversion circuitry, data is output via a serial interface using two standard protocols: SMBus and I2C.
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The LTF sensor performs the functions of light sensing, signal conditioning, and A/D conversion in a single monolithic IC. The LTF device converts light intensity to a digital format for a direct interface to a microcontroller. The output of this device is a square wave or pulse train whose frequency is linearly proportional to light intensity and features a dynamic range of 120dB.
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The TSL237 light-to-frequency converter combines a silicon photodiode and a current-to-frequency converter on a single monolithic CMOS integrated circuit. The output is a square wave (50% duty cycle) with frequency directly proportional to light intensity. Because it is TTL compatible, the output allows direct interface to a microcontroller or other logic circuitry. The TSL237 has been temperature compensated for the ultraviolet-to-visible range of 320 nm to 700 nm and responds over the light range of 320 nm to 1050 nm. The device is characterized for operation over the temperature range of -25 degrees C to 70 degrees C and supplied in a 3-lead clear plastic side-looker package with an integral lens
* High-Resolution Conversion of Light Intensity to Frequency With No External Components
* Communicates Directly With a Microcontroller
* High Irradiance Responsivity (2.3 kHz/(uW/cm²) at 524 nm)
* Low Dark Frequency (<2 Hz at 50° C)
* Single-Supply Operation (2.7V to 5.5V)
* Stable 200 ppm/°C Temperature Coefficient
* RoHS Compliant (-LF Package Only)
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High-Power Detector
Durable
Energy mode
Smart Interface
Full NIST-Traceability
Personal Wavelength Correction™
Highest Damage Threshold: 100 kW/cm²
New Disk Technology with the Best Absorber
Effective aperture diameter 17mm (area 2.27m²)
11PMK-W5 power detectors surface absorber stands up to average power densities of 100 kW/cm². That is the best in the world for average power density. 11PMK-W5 high-power detectors come ready to mount on a rod, a bracket and the square case even lets you set them right on the optical table.
These 11PMK series detectors are the best choice for any high average power density application. With Energy Mode option every member of 11PMK-H5 family can be equipped to measure single shot pulse energies as well as average power. From 450 mJ up to 6 J Q-switched or 600 J long pulse.
11PMK-W5 family is compatible with Standa 11Uno standalone power meter and 11P-Link PC based power meter.
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Description
FC series detectors are made through coupling InGaAs PIN photodiodes with FC connection using lenses. FC series detectors have high response within 1.0～1.65µm and the whole response spectral be extend to 0.65～1.65µm due to the optimized diode structure. Internal optical attenuator is used for measure higher optical power. The maximum of detectable optical power can get to 25dBm and 30dBm, respectively.
FC series are mostly applied for optical measurement. User can select appropriate units according to needed wavelength and linear range.
Features
* High Response within 1.0～1.65µm
* Low Dark Current
* Planar Structure
* Broad Spectral Response Range (0.65～1.65µm)
* Broad Dynamic Range
* High Reliability
* FC Connection, Firm Coaxial Package
Applications
* Optical Measurement
* Optical Detection
* Online Measuring of Optical Fiber Cable
* Output Test for Optical Amplifier
* Data Transmission
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