Description
The D171-Type Photodetector consists of a PIN coupled to a multimode fiber pigail. The device is available  in a 4-pin mini-DIL configuration (see Figure 3 and/or  Table 1) and is ideal for long-reach (SONET) and other  high-speed digital applications.
The D171-Type PIN Photodetector is a rear-illuminated  planar diode structure with a low-capacitance active  area for maximum responsivity and speed.
This device incorporates the new Laser 2000 manufacturing process from the Optoelectronics Products unit  of Lucent Technologies Microelectronics Group. Laser  2000 is a low-cost platform that targets high-volume  manufacturing and tight product distributions on all  optical subassemblies. This platform incorporates an  advanced optical design that is produced on Opto’s  highly automated production lines. The Laser 2000  platform is qualified for central office and uncontrolled  environments, and can be used for applications requiring high perfomance and low cost.

Features
■ Low-profil e, 4-lead mini-DIL pa ckage
   — Suita ble for SONET applications
■ High per formance
   — High speed (<0.5 ns typical  rise and  fall time)
   — High responsivity (0.85 A/W typical)
   — Low dark current
■ Planar st ructure  for high reliability
■ Wavelength : 1.1  µm—1.6 µm
■ 50 µm core multimode fiber
■ Wide operating temperature range :
   –40 °C to +85 °C
■ Wide bandwidth
■ Qualification program : Bellcor e TA-NWT-983

Applications
■ Long-reach SONET OC-3/OC-12 systems and  SDH STM-1/STM-4 systems
■ Secure digital data systems