1764-C-BAND EMCORE | Alldatasheet
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Standard ITU Grid Wavelengths Advanced Analog Chip Design Reduced Equipment Requirements in the Hub OC-48 Pin Out Telcordia Technologies™ 468 Compliant Wide Temperature Range – Stable Even in Harsh Environments RoHS Compliant The 1764 laser module is a Dense Wavelength Division Multiplexing (DWDM) laser for analog wireless and distributed antenna system (DAS) applications. It features a distributed-feedback (DFB) device that has been designed specifically for radio frequency (RF) and wireless applications. The 1764 laser has a wide temperature range for reliable performance in harsh node environments and narrow transmitter designs. It also features low adiabatic chirp to maximize signal quality in short and long lengths of fiber. The laser’s excellent inherent linearity minimizes degradation of the broadcast signals caused by quadrature amplitude modulated (QAM) channels. The 1764 is available in all C-band ITU grid wavelengths. Performance Highlights Parameter Min Typical Max Units Available Wavelengths See page 3 nm Operating Temperature Range -40 25 +85 C Slope Efficiency 0.12 - 0.28 mW/mA Adiabatic Chirp (measured at 500 MHz) 40 - 100 MHz/mA nd Order IMD -57 dBc rd Order IMD -70 dBc Frequency Range 5 - 2700 MHz RF Return Loss 16 - - dB 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 Tc Continuous -40 +85 °C Storage Temperature Range TSTG Continuous -40 +85 °C Laser Forward DC Current - Continuous - 150 mA Photodiode Reverse Voltage VMPD Continuous - 10 V Laser Reverse Voltage, DC - Continuous - 1 V ESD - HBM: R = 1500 Ohm, C = 100pF -500 500 V TEC Current I TEC Continuous -1.5 1.5 A 1764 1550 nm C-Band DWDM DFB Laser Module
DATASHEET | JULY 2013 FIBER OPTICS | REV 2013.07 Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice. Electrical/Optical Characteristics Laser Temperature (TL) = 25°C, IF = IOP, Beginning of Life (BOL) Parameter Symbol Condition Min Typ Max Unit Operating Case Temperature T C - -40 25 +85 C Slope Efficiency Iop=Ith+45 mA 0.12 - - mW/mA Threshold Current I TH 25C, BOL - - 20 mA Operating Current IOP BOL - - 120 mA Operating Voltage V OP 25C, BOL - - 2.5 V Wavelength ITU Grid See page 4 nm Drift over TC Range OP If = 60 mA, T = TOP - - 40 pm Laser Adiabatic Chirp FM IF = 60 mA, TOP = 25C @ 500 MHz 40 - 100 MHz/mA Optical Return Loss ORL - 40 - - dB Side Mode Suppression Ratio SMSR - 30 - - dB Optical Isolation ISO 25C 30 - - dB Relative Intensity Noise RIN IF = ITH + 70 mA - -155 dB/Hz Nominal Input Impedance Z IN - 22 25 27 MPD Responsivity rPD VRM = 5V 10 - 200 μA/mW MPD Dark Current I D IOP = 0 mA VRM = 5V, TOP = 25C 0.2 A MPD Current Relative to Output Power - VRM = 5V, TOP = 25C 10 - 200 mA/W Thermistor Resistance R TH TOP = 25C 9.5 10 10.5 k Ω Thermistor Temp. Coefficient TCTH TOP = 25C - -4.4 - %/C TEC Voltage V TEC - -2.5 - 3.8 V RF Characteristic Laser Temperature (TL) = 25°C, Iop = Ith+45 mA, Beginning of Life (BOL) Parameter Symbol Condition Min Typ Max Units
40 MHz to 890 MHz IF = 60 mA, TOP = 25C - - 1 dB p-p
Frequency Response Flatness |S21|
5 MHz to 2700 MHz IF = 60 mA, TOP = 25C 4 dB p-p
resistive match 50 to 25 pad |S11| 5 MHz to 2700 MHz IF = 60 mA, TOP = 25C 16 - - dB nd Order IMD IMD2 900 MHz (f1 = 942 MHz, f2 = 943 MHz) OMI = 5% per carrier (i) -57 dBc
1800 MHz (f1 = 943 MHz, f2 = 1885 MHz)
OMI = 5% per carrier (i) -57 dBc rd Order IMD IMD3 900 MHz (f1 = 942 MHz, f2 = 943 MHz) OMI = 5% per carrier (i) -76 dBc
1800 MHz (f1 = 1842 MHz, f2 = 1843 MHz)
OMI = 5% per carrier (i) -76 dBc
2100 MHz (f1 = 2140 MHz, f2 = 2145 MHz)
OMI = 5% per carrier (i) -70 dBc
2600 MHz (f1 = 2640 MHz, f2 = 2650 MHz)
OMI = 5% per carrier (i) -70 dBc (i) Laser Temperature (TL) = 25oC, Iop = Ith+45 mA, Fiber Length = 2 km, Beginning of Life (BOL) In order to prevent reflection-induced distortion, the laser must be connected to an optical cable having a return loss of at least 55 dB for discrete reflections and 30 dB for distributed reflections. 1764 1550 nm C-Band DWDM DFB Laser Module
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice. Figure 2. 1764 Circuit Schematic Figure 1. 1764 Laser Simplified Schematic
DATASHEET | JULY 2013 FIBER OPTICS | REV 2013.07 Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice. Pin Definitions Outline Diagram (Dimensions are in inches and millimeters) Fiber type: 0.9 mm O.D. jacketed single mode 9/125 mm (SMF-28) Fiber length: 130 cm + 10 cm, measured as shown below Nominal pin lead length: 0.2 inch (from external package wall) Pin Description
1 Thermistor
2 Thermistor
3 DC Laser Bias (-)
4 MPD Anode (-)
5 MPD Cathode (+)
6 Thermal Electric Cooler (+)
7 Thermal Electric Cooler (-)
8 Case Ground
9 Case Ground
11 Laser Common (+), Case GND
12 Laser Modulation (-)
13 Laser Common (+), Case GND
1764 1550 nm C-Band DWDM DFB Laser Module
DATASHEET | JULY 2013 FIBER OPTICS | REV 2013.07 Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice. Outline Diagram (continued) Ordering Code Definitions 1764 – ww - xx – yy – 10 Family Name Analog 1550 nm, DFB, Laser ITU Channel Wavelengths ww = 18: Channel 18, 1563.05 nm ww = 19: Channel 19, 1562.23 nm ….. ww = 62: Channel 62, 1527.99 nm Channel Plan xx = BB: Broadband Connectors y = SC: SC/APC Example 1764-32-BB-SC-10: 1764, ITU channel 32, 1551.72 nm, SC/APC connector. 130 + 10 cm Conn 130 + 10 cm Conn 1764 1550 nm C-Band DWDM DFB Laser Module
DATASHEET | JULY 2013 FIBER OPTICS | REV 2013.07 Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice. Laser Safety This product meets the appropriate standard in Title 21 of the Code of Federal Regulations (CFR). FDA/CDRH Class 1 laser product. This device has been classified with the FDA/CDRH under accession number 0220309. All Versions of this laser are Class 1 laser product, tested according to IEC 60825-1:2007/EN 60825-1:2007 Single-mode fiber pigtail with SC/APC connectors (standard). Wavelength = 1.5 m. Maximum power = 50 mW. Because of size constraints, laser safety labeling (including an FDA class 1 label) is not affixed to the module, but attached to the outside of the shipping carton. Product is not shipped with power supply. Caution: Use of controls, adjustments and procedures other than those specified herein may result in hazardous laser radiation exposure. 1764 1550 nm C-Band DWDM DFB Laser Module