Tunable single-frequency ring laser
Two-mirror figure “8” ring resonantor
Two-stage laser system for aligners
Ultrafast laser with multiply-folded resonant cavity
Ultrafast laser with multiply-folded resonant cavity
Unidirectional ring lasers
Unidirectional, planar ring laser with birefringence
Unidirectionally operating laser apparatus using semimonolithic
Waveguide configuration
Wavelength division multiplex type mode - lock laser device
Wavelength selectable device
Wavelength switchable semiconductor laser using half-wave...
Wavelength tunable laser
Wavelength-tunable traveling-wave semiconductor ring-laser
Whispering mode micro-resonator