摘要:
An apparatus holds a plurality of hollow cylindrical members and pushes off the hollow cylindrical members. The apparatus includes a holder shaft for holding the hollow cylindrical members in tandem thereon, a gripper member projecting outwardly from a side wall surface of the holder shaft and engaging an inner wall surface of a foremost one of the hollow cylindrical members, a cam disposed in the holder shaft for displacing the gripper member, a pusher cylinder for pressing an end face of a rearmost one of the hollow cylindrical members and moving all the hollow cylindrical members forward, to release the foremost one of the hollow cylindrical members from the holder shaft and position a next one of the hollow cylindrical members as a new foremost one of the hollow cylindrical members, and a turning cylinder for turning the holder shaft.
摘要:
An apparatus holds a plurality of hollow cylindrical members and pushes off the hollow cylindrical members. The apparatus includes a holder shaft for holding the hollow cylindrical members in tandem thereon, a gripper member projecting outwardly from a side wall surface of the holder shaft and engaging an inner wall surface of a foremost one of the hollow cylindrical members, a cam disposed in the holder shaft for displacing the gripper member, a pusher cylinder for pressing an end face of a rearmost one of the hollow cylindrical members and moving all the hollow cylindrical members forward, to release the foremost one of the hollow cylindrical members from the holder shaft and position a next one of the hollow cylindrical members as a new foremost one of the hollow cylindrical members, and a turning cylinder for turning the holder shaft.
摘要:
This provides a semiconductor laser device of a high light output efficiency, which is high in current confinement effect, small in leak current, and favorable in temperature property, and indicates a low threshold current, and can effectively confine laser light to a stripe region, and is favorable in beam profile. This semiconductor laser device (100) includes the laminated structure of an n-AlInP clad layer (103) a superlattice active layer section (104), a p-AlInP first clad layer (105), a GaInP etching stop layer (106) are formed, and on top of that, there are a p-AlInP second clad layer (107), a GaInP protective layer (108) and a p-GaAs contact layer (109), which are processed into a stripe-shaped ridge. A p-side electrode (111) is directly coated and formed on the etching stop layer of ridge top surface, ridge sides and ridge flanks since s the superlattice active layer section is sandwiched between the n-AlInP clad layer and the p-AlInP first clad layer, an energy band gap difference from the active layer section becomes greater.
摘要:
A laser diode capable of operating at high temperature by preventing carrier overflow is provided. A laser diode includes an AlGaInP-based laminate configuration including at least a lower cladding layer, an active layer and an upper cladding layer in this order, wherein the AlGaInP-based laminate configuration receives a larger compressive stress than 2200 ppm from a stress source.
摘要:
A laser diode capable of inhibiting overflow of electrons in a p-type cladding layer and improving temperature characteristics and light emitting efficiency is provided. A laser diode at least comprises: an n-type cladding layer; an active layer; and a p-type cladding layer, which are made of an AlGaInP compound semiconductor material and formed in this order on a substrate. A thickness of the p-type cladding layer is 0.7 μm or less.
摘要:
This provides a semiconductor laser device of a high light output efficiency, which is high in current confinement effect, small in leak current, and favorable in temperature property, and indicates a low threshold current, and can effectively confine laser light to a stripe region, and is favorable in beam profile.This semiconductor laser device (100) includes the laminated structure of an n-AlInP clad layer (103), a superlattice active layer section (104), a p-AlInP first clad layer (105), a GaInP etching stop layer (106) are formed, and on top of that, there are a p-AlInP second clad layer (107), a GaInP protective layer (108) and a p-GaAs contact layer (109), which are processed into a stripe-shaped ridge. A p-side electrode (111) is directly coated and formed on the etching stop layer of ridge top surface, ridge sides and ridge flanks since s the superlattice active layer section is sandwiched between the n-AlInP clad layer and the p-AlInP first clad layer, an energy band gap difference from the active layer section becomes greater.
摘要:
A laser diode capable of operating at high temperature by preventing carrier overflow is provided. A laser diode includes an AlGaInP-based laminate configuration including at least a lower cladding layer, an active layer and an upper cladding layer in this order, wherein the AlGaInP-based laminate configuration receives a larger compressive stress than 2200 ppm from a stress source.
摘要:
An SDH semiconductor laser has a semiconductor substrate which is (100) oriented and has a stripe ridge thereon, first and second cladding layers disposed on stripe ridge, an active layer sandwiched between the first and second cladding layers, and an electrode held in electric contact with the first and second cladding layers and the active layer. The stripe ridge extends in a axis direction, and the first and second cladding layers and the active layer jointly provide a semiconductor stripe region of triangular cross section sandwiched between (111) A faces. A method of manufacturing the SDH semiconductor laser is also disclosed.
摘要:
A semiconductor laser element is provided which includes a first semiconductor layer, an active layer having a current injection region, a second semiconductor layer, a third semiconductor layer, and an electrode for injecting a current into the active layer. In the semiconductor laser element, the first semiconductor layer, the active layer, the second semiconductor layer, and the third semiconductor layer are laminated in that order on a substrate, the first semiconductor layer has a current constriction layer which constricts the current injection region of the active layer, the third semiconductor layer is formed on an upper surface of the second semiconductor layer in a region corresponding to the current injection region of the active layer, and the electrode is formed on the upper surface of the second semiconductor layer in a region other than that of the third semiconductor layer.
摘要:
A semiconductor laser element is provided which includes a first semiconductor layer, an active layer having a current injection region, a second semiconductor layer, a third semiconductor layer, and an electrode for injecting a current into the active layer. In the semiconductor laser element, the first semiconductor layer, the active layer, the second semiconductor layer, and the third semiconductor layer are laminated in that order on a substrate, the first semiconductor layer has a current constriction layer which constricts the current injection region of the active layer, the third semiconductor layer is formed on an upper surface of the second semiconductor layer in a region corresponding to the current injection region of the active layer, and the electrode is formed on the upper surface of the second semiconductor layer in a region other than that of the third semiconductor layer.