FIBER OPTIC SERIES APPLICATIONS FEATURES * Fiber Optic Communication Links * Speeds in sub ns * Video Systems * High gain * Laser Monitoring Systems * Low dark current * Computers and Peripherals * Low capacitance * Industrial Controls * TO-46 metal can * Guidance Systems With lensed cap * FDDI Local Area Networks * High Speed Optical Communications UDT Sensors offers a variety of fiber optic detectors. They include: only 325 V. It provides high gain bandwidth product and high responsivity compared to detector/transimpedance amplifier combination. Fiber Optic Series-Silicon: are several families of small active area silicon photodiodes divided into High Responsivity Series (HR), High Speed Series (HS) and Ultra High Speed (UHS) series. Fiber Optic Series-Silicon / Hybrid: is a 90 MHz integrated silicon photodetector / transimpedance amplifier hybrid with a single power supply and linear differential output voltage for applications such as Ethernet and token ring systems. This detector is available with a micro lens cap. Fiber Optic Series-Silicon BPX-65: is a 1 x 1 mm active area high speed silicon photodetector for high modulation bandwidth applications where a large active area is needed. Fiber Optic Series-InGaAs: devices are high speed InGaAs detectors exhibiting a spectral range of 850 to 1700 nm. These detectors are specifically designed for NIR optical communication, providing high responsivity, low capacitance and high speed. They are available with micro lens cap. Fiber Optic Series-Silicon APD: is a small active area Silicon Avalanche Photodiode with gains up to a few hundred with a typical reverse bias of All of the above detectors and /or hybrids are also available with a spherical micro lens cap to enhance fiber optic coupling efficiency. They can also be provided with any of the standard receptacles such as SMA, ST, FC, etc., for direct optical fiber coupling. FC FSMA UDT Sensors Inc. Phone: 310-978-0516 ST Fax: 310-644-1727 http:\\www.udt.com 1 HIGH SPEED SILICON SERIES FIBER OPTIC PHOTODIODES APPLICATIONS FEATURES * Fiber Optic Communication Links * Video Systems * Computers and Peripherals * Industrial Control * Guidance Systems * Laser Monitoring UDT Sensors Silicon Fiber Optic detector series consist of three families of small active area photodiodes with High Responsivity (HR Series), High Speed (HS Series) and Ultra High Speed (UHS Series) properties. UDT Sensors' Ultra High Speed (UHS) detector demonstrates state of the art detector technology, achieving response times less than 300ps at -3V reverse bias. The spectral range for these devices are from 350 nm to 1100 nm. The responsivity and response time are optimized such that the HR series exhibit a peak responsivity of 0.50 A/W at 800 nm and typical response times of a few hundred pico seconds at -5V, while the HS series have a peak responsivity of 0.40 A/W at 750 nm and typical response times less than 500 ps at -3V. Note that for all high-speed photodetectors, a reverse bias is required to achieve the fastest response times. However, the reverse bias should be limited to maximum reverse voltage specified to avoid damage to the detector. Output signals can be measured directly with an oscilloscope or coupled to high frequency amplifiers as shown in figure 10 of the Photodiode Characteristics section of the catalog. Typical Capacitance vs Reverse Bias 100 HR-040 HR-026 HR-020 HR-008 & HR-005 Capacitance (pF) Capacitance (pF) Typical Capacitance vs Reverse Bias HIGH RESPONSIVITY SERIES 100 10 1 0.1 0 5 10 HIGH SPEED SERIES HS-040 HS-026 UHS-016 HS-020 HS-008 & HS-005 10 1 0.1 0 15 5 HIGH RESPONSIVITY SERIES 3dB Frequency Response 3dB Frequency Response ( ) 1E4 1E3 1E2 1E1 0 HR-005 HR-020 HR-026 HR-040 5 10 15 HIGH SPEED SERIES UHS-016 HS-008 HS-005 HS-020 HS-026 HS-040 1E3 1E2 0 5 Phone: 10 Reverse Voltage (V) Reverse Voltage (V) UDT Sensors Inc. 15 Frequency Response vs Reverse Bias Frequency Response vs Reverse Bias 1E4 10 Reverse Voltage (V) Reverse Voltage (V) 2 * Sub ns Response * Low Dark Current * Low Capacitance * TO-46 Package * w/ FO Receptacle * w/ Lensed Cap 310-978-0516 Fax: 310-644-1727 http:\\www.udt.com 15 Dark Current (nA) 830 nm min NEP (W/Hz) Reverse Voltage (V) 830 nm 50 ohm 830 nm typ typ typ max Temp Range ( C) Rise Time (ns) typ max typ max Storage Capacitance (pF) -55 ~ +125 Responsivity (A/W) Operating 2 Peak Wavelength (nm) Dimension (mm) Active Area Area (mm ) Model No. TYPICAL ELECTRO-OPTICAL SPECIFICATIONS AT TA=23OC -40 ~ +100 FIBER OPTIC SERIES, SILICON Package Style HIGH SPEED SERIES (VBIAS=-3 V) PIN-HS005 PIN-HS005L* .01 0.127f PIN-HS008 PIN-HS008L* .04 0.203 sq PIN-HS020 PIN-HS020L* .20 0.508f PIN-HS026 PIN-HS026L* .34 0.660f PIN-HS040 PIN-HS040L* .77 0.991f 0.01 0.10 1.0 0.30 0.01 0.10 1.0 0.30 3.6 e-15 0.30 3.6 e-15 0.40 0.30 0.40 15 750 .35* .40* 2.5 0.20 0.02 0.50 5.2 e-15 0.40 0.50 4.0 0.035 0.35 0.80 6.8 e-15 0.45 0.65 0.05 0.50 5.5 1.50 8.1 e-15 0.65 0.90 HIGH RESPONSIVITY SERIES (VBIAS=-5 V) PIN-HR005 PIN-HR005L* .01 0.127f PIN-HR008 PIN-HR008L* .04 0.203 sq PIN-HR020 PIN-HR020L* .20 0.508f PIN-HR026 PIN-HR026L* .34 0.660f PIN-HR040 PIN-HR040L* .77 0.991f 0.03 0.30 0.8 0.03 0.30 0.8 0.80 0.80 5.0 e -15 0.60 5.0 e -15 0.60 1.0 9 / TO-18 1.0 15 800 .45* .50* 2.0 0.60 0.06 1.00 7.1 e-15 0.80 1.2 3.5 0.085 1.50 1.0 e-14 0.90 1.4 4.5 0.30 2.00 1.9 e-14 2.0 0.020 0.50 7.2 e-15 1.0 1.6 0.25 0.30 ULTRA HIGH SPEED (VBIAS=-3 V) PIN-UHS016 PIN-UHS016L* .13 0.406 750 .30* * Responsivtiy measured with a flat glass window. Refer to the specific family of devices for applied reverse bias. For mechanical drawings please 0.60 .6 refer to pages 57 thru 67. Use proper handling and testing procedures. HS HS R es ponsivity (A /W ) electrostatic discharge (ESD). Typical TypicaSpectral l SpectralResponse Re spons e 0.50 .5 Responsivity (A/W) These devices are sensitive to 15 HR HR Chip centering within 0.005 inches w.r.t. the OD of header. PRECAUTION: .35* 0.40 .4 UHS U HS 0.30 .3 0.20 .2 0.10 .1 0 0 4 00 400 5 00 500 6 00 7 00 600 700 8 00 800 9 00 900 1 0 00 1000 1 1 00 1100 W ave le ng th (nm) (n m ) Wavelength For MECHANICAL DRAWINGS Click Here UDT Sensors Inc. Phone: 310-978-0516 Fax: 310-644-1727 http:\\www.udt.com 3