Athermal operation of a multi-section laser for optical communications

Two distinct athermal bias current control procedures are demonstrated for a low-cost, monolithic, three section slotted single mode laser, achieving wavelength stability of ±0.01 nm over a temperature range of 10–85°C. This is the first time that athermal performance has been demonstrated for a three-section slotted laser with simple fabrication, and has possible applications in low-cost, ONU-side PON applications. An analytical model provides further insight into the operation of these devices.