1742 18 GHz 1550 nm Microwave DFB Laser DATASHEET | AUGUST 2013 Applications Antenna Remoting Cellular and PCS Networks Military Communications Tracking, Telemetry, and Control Features MICROWAVE The 1742 18 GHz 1550 nm Microwave Distributed Feedback (DFB) Laser provides exceptional performance for linear fiber optics communications in very wide bandwidth applications. EMCORE’s linear fiber optics are an excellent alternative to using coaxial cable systems to transmit 10 MHz to 18 GHz signals. They offer significant improvements in reliability of microwave communications networks by transmitting the RF signal in its original format. As a result of these properties, the 1742 provides significant improvements in signal quality for a wide variety of applications including antenna remoting, telemetry, timing and reference signal distribution, measurement and delay lines. The basic 1742 laser module can be integrated into a complete transmitter either as a flange-mount for extreme environments, or as a plug-in for EMCORE’s System 10000 rack-mount system. Electronics within the flange-mount and plug-in transmitters control the laser temperature and DC bias current and provide warnings whenever the temperature or power deviates from their intended levels. This provides a self-regulating, fully-integrated microwave product with excellent noise performance in sensitive optical links. High-Dynamic-Range Long Distance Communications 10 MHz to 18 GHz Bandwidth Built-in Optical Isolator 1550 nm Performance Highlights Parameter Min Typ Max Unit Available Wavelengths 1545 1550 1555 nm dBm Optical Output Power - 9 - Temperature Range -40 - +65 °C Frequency Range 10 - 18000 MHz Typical Data © 2013 EMCORE Corporation | REV 2013.08 +1 626-293-3400 [email protected] www.emcore.com Information contained herein is deemed to be reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specifications at any time without notice. 1742 18 GHz 1550 nm Microwave DFB Laser DATASHEET | AUGUST 2013 MICROWAVE Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability. Parameter Symbol Condition Min Max Unit Operating Temperature Range of Baseplate TOP Continuous -40 +65 ˚C Storage Temperature TSTG - -40 +85 ˚C RF Input Power PIN 60 Seconds - 20 dBm - - 25 120 mA VRPD - 200 10 V V Laser Forward dc Current Photodiode Reverse Voltage Laser Reverse Voltage - - - 1 ESD - HMB: R = 1500 Ohm, C = 100 pF -500 500 V ITEC Continuous -1.9 1.9 A TEC Current Electrical Characteristics Parameter Specifications Unit Wavelength 1550 to + 5 nm Spectral Width, FWHM , Typ., Max 10 MHz Optical Power, Typical @ ITH +55 mA 8 (min) dBm Optical Power Stability vs. Temperature + 15 % dc Modulations Gain, Typical 0.24 - 2 1. Specifications guaranteed when unit is connected to an optical path with return loss >35 dB. 2. No RF Input. DC Parameter Symbol Condition Min Max Units Laser Bias IOP 25°C - 65 mA Threshold Current ITH 25°C - 26 mA Forward Voltage VF IOP = ITH + 50 mA - 6 V Thermo Electric Cooler ITEC - -1.1 - A Thermistor RTH 25°C 9.5 10 kΩ Thermistor Temperature Coefficient TETH 25°C - 4.4 % / °C Seven-Pin Miniature Rectangular Connector Pin Description A Thermistor B TEC (-) C Thermistor D TEC (+) E Laser Bias F Ground G Monitor Photodiode © 2013 EMCORE Corporation | REV 2013.08 +1 626-293-3400 [email protected] www.emcore.com Information contained herein is deemed to be reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specifications at any time without notice. 1742 18 GHz 1550 nm Microwave DFB Laser DATASHEET | AUGUST 2013 MICROWAVE RF Characteristics Parameter Specifications 1742B Maximum Frequency 7 Minimum Frequency Unit 1742C 1742D 13 18 GHz 4.0 5.0 dB p-p 4.0 4.0 0.01 Amplitude Flatness1&2 4.0 Input Return Loss (50 Ω) 7.0 Input 1 dB Compression +20 Input Third Order Intercept3 0.01 GHz - 7.0 GHz 7.0 GHz - 18.0 GHz +30 +25 Noise Figure (dB)4 0.01 GHz - 3.0 GHz 3.0 GHz - 7.0 GHz 7.0 GHz - 13.0 GHz 13.0 GHz - 18.0 GHz 47 50 - 47 50 54 - GHz dB dBm 47 50 54 59 1. Specifications guaranteed when unit is connected to an optical path with return loss >35 dB. 2. Peak to Peak 3. Two Carrier Test 4. No RF Input Mechanical Drawing (dimension are in inches) © 2013 EMCORE Corporation | REV 2013.08 Electrical Schematic +1 626-293-3400 [email protected] www.emcore.com Information contained herein is deemed to be reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specifications at any time without notice. 1742 18 GHz 1550 nm Microwave DFB Laser DATASHEET | AUGUST 2013 MICROWAVE Ordering Information 1742n-yy-zz Frequency (n) Option Code RF Connector (yy) Option Code Optical Connector (zz) Option Code 7 GHz B SMA Male SM No optical connector, 900m buffered pigtail 13 GHz C SMA Female SF FC/APC optical connector, 900m buffered pigtail FA 18 GHz D SC/APC, optical connector, 900m buffered pigtail SA PG Laser Safety This product meets the appropriate standard in Title 21 of the Code of Federal Regulations (CFR). FDA/CDRH Class 1M laser product. This device has been classified with the FDA/CDRH under accession number 0220191. All versions of this laser are Class 1M laser product, tested according to IEC 60825-1:2007 / EN 60825-1:2007. An additional warning for Class 1M laser products. For diverging beams, this warning shall state that viewing the laser output with certain optical instruments (for example, eye loupes, magnifiers and microscopes) within a distance of 100 mm may pose an eye hazard. For collimated beams, this warning shall state that viewing the laser output with certain optical instruments designed for use at a distance (for example, telescopes and binoculars) may pose an eye hazard. Wavelength = 1.5 µm. Maximum power = 30 mW. *Caution: Use of controls, adjustments and procedures other than those specified herein may result in hazardous laser radiation exposure. *IEC is a registered trademark of the International Electrotechnical Commission. © 2013 EMCORE Corporation | REV 2013.08 +1 626-293-3400 [email protected] www.emcore.com Information contained herein is deemed to be reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specifications at any time without notice.