High Performance and Low-cost Fiber Grating Laser Module Package Employing a Hyperbolic Fiber Microlens

This study demonstrates that it is possible to fabricate a fiber grating external cavity laser (FGECL) module with a low cost while still maintaining a good performance by using a low-cost AR-coated (5times10
^-3
) laser and a tapered hyperbolic-end fiber (THEF) microlens