A light emitting device includes a base member, a laser element, a retaining member, a fluorescent member, and first and second fixing members. The retaining member has a first surface on a laser element side and a second surface not on the laser element side. The fluorescent member is fixed to a through hole of the retaining member. The first and second fixing members clamp the retaining member. The first and second fixing members have first and second contact surfaces in contact with the first and second surfaces of the retaining member, respectively. A distance between the first and second contact surfaces becomes smaller as the first and second contact surfaces become farther from the through hole. The retaining member, the first and second fixing members are arranged such that a space surrounded by the retaining member, and the first and second fixing members exists around the retaining member.

A light emitting device includes a base member, a laser element, a retaining member, a fluorescent member, and first and second fixing members. The retaining member has a first surface on a laser element side and a second surface not on the laser element side. The fluorescent member is fixed to a through hole of the retaining member. The first and second fixing members clamp the retaining member. The first and second fixing members have first and second contact surfaces in contact with the first and second surfaces of the retaining member, respectively. A distance between the first and second contact surfaces becomes smaller as the first and second contact surfaces become farther from the through hole. The retaining member, the first and second fixing members are arranged such that a space surrounded by the retaining member, and the first and second fixing members exists around the retaining member.

A pulse multiplier includes a polarizing beam splitter, a wave plate, and a set of mirrors. The polarizing beam splitter receives an input laser pulse. The wave plate receives light from the polarized beam splitter and generates a first set of pulses and a second set of pulses. The first set of pulses has a different polarization than the second set of pulses. The polarizing beam splitter, the wave plate, and the set of mirrors create a ring cavity. The polarizing beam splitter transmits the first set of pulses as an output of the pulse multiplier and reflects the second set of pulses into the ring cavity. This pulse multiplier can inexpensively reduce the peak power per pulse while increasing the number of pulses per second with minimal total power loss.

A light emitting device includes a base member, a laser element, a retaining member, a fluorescent member, and first and second fixing members. The retaining member has a first surface on a laser element side and a second surface not on the laser element side. The fluorescent member is fixed to a through hole of the retaining member. The first and second fixing members clamp the retaining member. The first and second fixing members have first and second contact surfaces in contact with the first and second surfaces of the retaining member, respectively. A distance between the first and second contact surfaces becomes smaller as the first and second contact surfaces become farther from the through hole. The retaining member, the first and second fixing members are arranged such that a space surrounded by the retaining member, and the first and second fixing members exists around the retaining member.

A light emitting device includes a base member, a laser element, a retaining member, a fluorescent member, and first and second fixing members. The retaining member has a first surface on a laser element side and a second surface not on the laser element side. The fluorescent member is fixed to a through hole of the retaining member. The first and second fixing members clamp the retaining member. The first and second fixing members have first and second contact surfaces in contact with the first and second surfaces of the retaining member, respectively. A distance between the first and second contact surfaces becomes smaller as the first and second contact surfaces become farther from the through hole. The retaining member, the first and second fixing members are arranged such that a space surrounded by the retaining member, and the first and second fixing members exists around the retaining member.

Various embodiments provide a high-efficiency and directional non-resonant laser using a scattering cavity and a method of manufacturing the same. According to various embodiments, the non-resonant laser may include a gain medium unit in which a scattering cavity and an entrance communicating with the scattering cavity are provided, and a pumping and supply unit configured to supply pumping light to an inside of the scattering cavity. The gain medium unit may be implemented to be excited by the pumping light on the inside of the scattering cavity and to output emission light through the entrance. According to various embodiments, the gain medium unit may weaken the pumping light while reflecting the pumping light on the inside of the scattering cavity, and may amplify the emission light while reflecting the emission light on the inside of the scattering cavity.

Various embodiments provide a high-efficiency and directional non-resonant laser using a scattering cavity and a method of manufacturing the same. According to various embodiments, the non-resonant laser may include a gain medium unit in which a scattering cavity and an entrance communicating with the scattering cavity are provided, and a pumping and supply unit configured to supply pumping light to an inside of the scattering cavity. The gain medium unit may be implemented to be excited by the pumping light on the inside of the scattering cavity and to output emission light through the entrance. According to various embodiments, the gain medium unit may weaken the pumping light while reflecting the pumping light on the inside of the scattering cavity, and may amplify the emission light while reflecting the emission light on the inside of the scattering cavity.

In an example, the present invention provides a laser system. The laser system has a source laser (e.g., CBC) coupled to first mirror device opposing a second mirror device and configured to generate a resonating laser beam between the first mirror and the second mirror. In an example, the system has a piezoelectric device configured to the second mirror device and characterized by a refractive e index such that one or more voids is changed by applying an energy to the piezo electric device to cause a change in a value of the refractive index, e.g., by more than 0.0001, to allow the resonating laser beam or a portion of the resonating laser to traverse through a portion of the second mirror device.

In an example, the present invention provides a laser system. The laser system has a source laser (e.g., CBC) coupled to first mirror device opposing a second mirror device and configured to generate a resonating laser beam between the first mirror and the second mirror. In an example, the system has a piezoelectric device configured to the second mirror device and characterized by a refractive e index such that one or more voids is changed by applying an energy to the piezo electric device to cause a change in a value of the refractive index, e.g., by more than 0.0001, to allow the resonating laser beam or a portion of the resonating laser to traverse through a portion of the second mirror device.