抄録
We describe narrow linewidth tunable lasers for digital coherent system. To realize high transmission
capacity, and wider deployment to metro and data center network, packaging technology for small
footprint, and μ-Integrable Tunable Laser Assembly (μ-ITLA) characteristics with DFB/DR laser array
based tunable laser were reported. We realized the highly reliable packaging technique by applying an
adhesive bonding technique, high performance fl exible grid μ-ITLA with less than 300kHz linewidth.
