1098589 COHERENT | Alldatasheet

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High-Sensitivity Optical Sensors Semiconductor Photodiode Sensors Provide a Highly Sensitive, Low Power Sensor with a Fast Response Time Semiconductor (photodiode) sensors convert incident photons into current, providing a highly sensitive power sensor. These high-sensitivity semiconductor sensors are ideal for CW laser measurements in the nW to low mW level. They typically saturate in the 10 to 50 mW level, depending upon the model. Light shield is removable. For linear operation up to a maximum of 5 Watts, an optional 1000:1 attenuator is used. LM-2 and OP-2 Series sensors offer four photodiode detector choices, a silicon model for 400 to 1064 nm (VIS), a UV-enhanced silicon model for 250 to 400 nm (UV) and a germanium model for 800 to 1800 nm in the infrared (IR). FEATURES & BENEFITS

  • Si, Ge photodiodes
  • Spectral range: 250 nm to 1800 nm
  • Fiber-optic connector (optional, see datasheet accessories page)
  • 1000:1 attenuator for measurement to 5 W (optional, see datasheet accessories page)

APPLICATIONS

  • Scientific
  • Manufacturing
  • Quality Control
  • Tuning and Peaking Lasers

High-Sensitivity Optical Sensors Datasheet SPECIFICATIONS OP-2/LM-2 UV OP-2/LM-2 VIS OP-2/LM-2 IR Detector Material Silicon Silicon Germanium Power Range 10 nW to 30 mW 10 nW to 30 mW 2 10 nW to 10 mW Resolution (nW) 1 Maximum Power Density (W/cm 2) 0.3 1.0 0.5 Active Area Diameter (mm) 6 7.9 5 Calibration Wavelength (nm) 200 to 400 440 to 445/450 to 1100 800 to 1700/1700 to 1800 Cooling Method Air-cooled Connector Type OP DB-25/LM DB-25 Cable Length (m) 1.8 Part Number OP-2 LM-2 1098401 1098390 1098313 10982984 10984164 1098342 1 OP-2 IR and LM-2 IR have different spectral ranges. 2 Power range is wavelength dependent. See chart below. 3 ±12% uncertainty is for the 440 nm to 445 nm spectral range. ±5% uncertainty is for the 450 nm to 1100 nm spectral range. 4 C24 Quick Ship program: eligible for next business day shipment. Measurable Power vs. Wavelength OP-2 VIS and LM-2 VIS Saturation and Minimum Power UV/VIS Sensors Over Wavelength Wavelength (nm) 0.001 0.01 0.1 100 1000 2004 00 6008 00 1000 1200 Power (mW) Wand UV-VIS Saturation Power Wand UV-VIS Minimum Power Standard UV-VIS Saturation Power Standard UV-VIS Minimum Power Wavelength (nm) Power 1 nW 400 100 mW 10 nW 100 nW 1 µW 10 µW 100 µW 1 mW 10 mW 5006 00 7008 00 9001 000 1100 Min. Power Max. Power Adjustable 108-171 mm (4.25-6.73 in.) R15 mm (0.6 in.) Light Shield is Removeable0.75-32 Threads per inch 55 mm (2.2 in.) 20 mm (0.8 in.)Ø6 mm (0.3 in.) Ø7.9 mm (0.31 in.) VIS Ø6.0 mm (0.24 in.) UV Ø5.0 mm (0.20 in.) IR Ø98 mm (3.9 in.) Note: Detector Surface is 7.1 mm (0.28 in.) below front face of aperture plate MECHANICAL SPECIFICATIONS TYPICAL PERFORMANCE OP-2 UV/OP-2 VIS/ OP-2 IR LM-2 UV/ LM-2 VIS/LM-2 IR Side View Front View

Thermal SmartSensor Adapter Part Number: 1056827 1 The Thermal SmartSensor Adapter converts LM-model position-sensing thermopiles and LM-2 optical sensors for use with FieldMaxII and FieldMate meters. Designed for use with multiple sensors, this adapter can read the sensor EEPROM contents and program itself when powered up via the meteconnection. Note: Beam position information is not available when using these meters. 1000:1 Attenuator Part Number: 1098318 1 This attenuator is used with OP-2 VIS, LM-2 VIS, OP-2 IR and LM-2 IR sensors to allow operation up to 5 W in the visible and 3W in the infrared regions. The attenuator threads into the sensor in place of the light shield to provide from 1100:1 to 950:1 attenuation. Each attenuator is calibrated for 1000:1 ±5% at 635 nm and is supplied with a calibration certificate. The useful spectral range is 400 to 1800 nm. The clear input aperture is 0.312” (7.9 mm) in diameter. High-Sensitivity Optical Sensors Datasheet POWER SENSOR ACCESSORIES 400 Wavelength (nm) Attenuation Ration800:1 900:1 1000:1 1100:1 600 800 1000 1200 1400 1600 1800 Calibrated @ 1000:1 ±5% @ 635 mmCalibrated @ 1000:1 ±5% @ 635 mm Ø8 mm (0.31 in.) Ø44 mm (1.75 in.) Ø22 mm (0.88 in.) Ø3 mm (0.12 in.) 5 mm (0.19 in.) 3/4-32 UN-2A 51 mm (2.02 in.)

Coherent follows a policy of continuous product improvement. Specifications are subject to change without notice. Coherent’s scientific and industrial lasers are certified to comply with the Federal Regulations (21 CFR Subchapter J) as administered by the Center for Devices and Radiological Health on all systems ordered for shipment after August 2, 1976. Coherent offers a limited warranty for all High-Sensitivity Optical Sensors. For full details of this warranty coverage, please refer to the Service section at www.coherent.com or contact your local Sales or Service Representative. MC-050-19-0M1119 Copyright ©2019 Coherent, Inc. Coherent, Inc.,

5100 Patrick Henry Drive Santa Clara, CA 95054

p. (800) 527-3786 | (408) 764-4983 f. (408) 764-4646 tech.sales@coherent.com www.coherent.com High-Sensitivity Optical Sensors Datasheet Fiber-Optic Connector Adapters Part Number: 1098589 (SMA-Type Connector) 1098339 1 (FC/PC-Type Connector) The following fiber-optic adapters can be mounted directly onto the 3/4-32 threads on the front of LM-2, OP-2, LM-3, LM-10, and LM-150FS sensors. These fiber adapters can also be used with our 1.035-40M adapter ring to fit on the LM-20, LM-45, LM-100, LM-150 LS, and LM-200 sensors. Post and Stand Part Number: 1257607 (2-inch Height Post/Stand Assembly with 2-inch Delrin Post) 1097917 (4-inch Height Post/Stand Assembly with 4-inch Delrin Post (included with most Power Sensors, as pictured) 1257605 (2-inch Delrin Post) 0010-1220 (4-inch Delrin Post) POWER SENSOR ACCESSORIES (continued)