OL3492N/LR 1310nm MQW Laser Diode Uncooled Coax Module with Single Mode Fiber DESCRIPTION The OKI OL3492N/LR is a 1310nm MQW Laser Diode in a PCB mountable coaxial package with single mode fiber and low relative intensity noise (RIN). FEATURES • SMF output: 3mW • Low RIN • Wide operating range • MQW structure OUTLINE DIMENSIONS 1.0 Pin No. 6.4 1 3 17.0 12.7 7.0 2 4 ø4.0 Function 1 LD cathode 2 LD anode (case) 3 PD anode 4 PD cathode ø6.8 ø2.2 (2x) 2.0 ø0.45 (4x) 13.0 23.6 4.0 Dimensions in mm. CIRCUIT LD 2 1 (Case) PD 4 3 OKI SEMICONDUCTOR 1 ■ OL3492N/LR ■ –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings [1] Parameter Symbol Rating Unit 3 mW If(LD) 150 mA Vr(LD) 2 V Fiber output power Pf Laser diode forward current Laser diode reverse voltage Photo diode reverse voltage Vr(PD) 20 V Operating temperature Topr -40 to +85 °C Storage temperature Tstg -40 to +85 °C Soldering (max. 10 sec) Tsld 260 °C 1. Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. Functional operation should be restricted to the conditions as detailed in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Recommended Operating Conditions (TA = 25 °C) Rated Value Parameter Symbol Threshold current Ith Fiber output power Pf Condition Min Typ Max – – 10 20 mA 2 – – mW If = Ith + 40 mA Unit Forward voltage Vf If = 30 mA – – 1.5 V Center wavelength λc Pf = 2 mW 1290 1310 1330 nm Spectral width [1] σ Pf = 2 mW Monitor current Im Pf ave. = 1 mW – – 2.5 nm 200 – – µA nA Photo diode dark current Idark Vr(PD) – 0.5 20 Rise time τr – – 0.5 ns Fall time τf Ibias = Ith Pf ave. = 1 mW, 10-90% – – 0.5 ns Carrier to noise ratio [2] CNR OMI = 40% @25 MHz 53 – – dB Relative intensity noise RIN f = 25 MHz BW = 4 MHz – – -135 dB/Hz 1. Spectral Width: RMS x 1, CW. 2. Reflection = -35 dB, Rx noise = 10 pA/Hz1/2, Fiber = 1 m, Pf = 1 mW Ave. FIber Pigtail Specifications Parameter Type Rated Value Unit SM – Mode Field Diameter 10 ±1 µm Cladding Diameter 125 ±2 µm 900 µm Length 1 (Min.) m Connector FC/SPC – Jacket Diameter 2 OKI SEMICONDUCTOR