INTRODUCTION
Oki Semiconductor’s OL4121N-120/OL4121N-140 family of 1480-nm high-power laser diodes are available in a 14-pin “butterfly” package which is designed for high-performance fiber-optic applications. The OL4121N-120 and OL4121N-140 diodes have a built-in thermo-electric cooler, thermistor, and isolator, and have a single-mode fiber pigtail.

FEATURES
• High power output:  Pf=120 mW (OL4121N-120)
                                   Pf=140 mW (OL4121N-140)
• 14-pin “butterfly” package
• Single-mode fiber
• Built-in isolator
• Includes photodiode for power monitoring
• Built-in thermo-electric cooler (TEC)

APPLICATION
• WDM/DWDM systems
• Erbium-doped fiber amplifier
• Regeneration of data
• Fiber-optic long-haul terrestrial networks