D2547P44

D2547P44 Features

distributed-feedback (DFB) laserwavelengths ranging from 1528.77 nm—1610.06 nm

D2547P44 Description

The D2547P-Type DFB laser module is designed foruse with an external lithium niobate modulator andalso in applications where high power (20 mW) isrequired.The laser comes packaged in an industry-standard14-pin butterfly module with a polarization-maintain-ing fiber pigtail.Temperature-stabilized with a thermoelectric cooler(TEC) and thermistor, the package is available in Cand L band ITU-T grid wavelengths on a 100 GHzspacing plan.D2547P does not contain a wavelength locker, whichis not needed for high-reliability operation in100GHz-spaced applications. For a 20 mW CW laserbutterfly version with integrated wavelength lockerand available on a 50 GHz grid, refer to the compan-ion product data sheet for D3587P.

D2547P44 Applications

— Dense WDM— SONET/SDH OC-192/ STM-64— Extended and ultra-long reach— Undersea systems

D2547P44 Description (continued)

Controlled FeedbackControlled TemperatureControlled PowerStandard Package22

D2547P44 Functional Description

Figure 2. D2547P Circuit Schematic3