A Widely Tunable Directly Modulated DBR Laser With High Linearity

A Widely Tunable Directly Modulated DBR Laser With High Linearity

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We demonstrate a widely tunable and high-modulation-bandwidth distributed Bragg reflector (DBR) laser.With the selected butt-joint material (λg = 1.44 μm) and butt-joint angle (45°) for the grating section, a widely tuning range of 13.

88 nm with 19 consecutive channels is obtained for the two-section dodge warlord for sale DBR laser.Furthermore, a small-signal modulation bandwidth of 16 GHz with in-band flatness of ±3 dB is realized at 10 °C.A uniform modulation bandwidth of more than 13 GHz is obtained for ten consecutive channels at 25 °C.

Meanwhile, the DBR laser shows a high linearity, with an input 1-dB compression point of 17 lock shock and barrel art dBm and an input third-order intercept point of 30 dBm at 13 GHz.