BUTTERFLY LASER

In high-speed optical communication and optica coherence tomography(OCT),laser performance is pushed to fundamental physical limits.

Laser wavelength,output power,efficiency,and lifetime are all strongly temperature-de-pendent.

Typical wavelength drift is approximately 0.1 nm/℃.

Without precise temperature control,even small thermal fluctuations can lead to:

1.Wavelength drift and channel crosstalk in DWDM systems

2.Increased bit error rate(BER)

3.Power instability and reduced modulation efficiency

4.Accelerated device aging and reduced lifetime

By integrating a TEC directly inside the butterfly package and thermally coupling it to the DFB/EML/SLD chip,the laser operating point can be actively locked.Key performance improvements include: 1.Temperature stability better than±0.01℃ 2.Wavelength stability at±0.001 nm level,meeting DWDM requirements down to 0.4 nm spacing 3.Stable threshold current and slope efficiency→consistent optical output power 4.Reduced junction temperature→significantly extended device lifetime 5.Fast thermal response→rapid stabilization after power-on

1.Solid-state,vibration-free operation→no impact on optical noise

2.Compact integration inside butterfly package→ideal for high-density modules

3.Precise closed-loop temperature control→repeatable laser characteristics

4.Low thermal resistance design→efficient heat extraction from laser junction

5.Telecom-grade reliability→supports 25-year system lifetime targets

The following models represent typical single stage TEC models and micro single stage TEC models commonly used in butterfly laser applications.They are provided for reference and comparison only,not as a complete product list.