Abstract: The present disclosure provides a stripping apparatus for a coating layer of an optical fiber, including an optical fiber fixing device, a stripping device, and a cleaning device. The optical fiber fixing device is configured to fix an optical fiber and drive the optical fiber to rotate around a rotation axis and move along an extension direction of the rotation axis. The stripping device is provided on one side of the optical fiber fixing device along the extension direction of the rotation axis. The stripping device is configured to strip off a coating layer of the optical fiber. The cleaning device includes a cleaning space for cleaning the optical fiber, and the cleaning space is located between the stripping device and the optical fiber fixing device.

Abstract: An optical fiber mode stripper, a manufacturing method for an optical fiber mode stripper, and a laser are provided. The optical fiber mode stripper includes an optical fiber and fillers. The optical fiber is provided with a waveguide destruction region extending along a length direction of the optical fiber. A portion of the optical fiber in the waveguide destruction region includes a core and a cladding layer. The cladding layer is provided with recessed structures disposed at intervals along the length direction of the optical fiber and/or disposed at intervals circumferentially around the cladding layer. The fillers are filled in the recessed structures. The filler has a refractive index greater than a refractive index of the cladding layer.

Abstract: The disclosure provides a cladding light stripper, a method for manufacturing the same, and a laser apparatus. The cladding light stripper includes an optical fiber and a refractive component. A refractive index of a first refractive member of the refractive component is greater than a refractive index of the cladding layer, so as to achieve the stripping of cladding light. Moreover, cross-sectional areas of the first refractive member in a radial direction of the optical fiber gradually increase in a direction from an input end to an output end of the optical fiber, so as to avoid rapid temperature rise at local position of the first refractive element to safely strip the cladding light.

Abstract: Embodiments of the present application disclose an optical path coupling system and a control method for an optical path coupling system. The optical path coupling system comprises a laser input optical fiber, an optical path switching module, an optical path coupling module and a monitoring control module, wherein the optical path switching module comprises first photoelectric sensors, and the optical path coupling module comprises second photoelectric sensors. According to the present application, the monitoring control module outputs a first alarm signal according to one or both of a first signal and a second signal, so that the safety of the optical path coupling system can be improved.

Abstract: A universal test chiplet for testing a plurality of chiplets to be tested is provided. The universal test chiplet includes a chiplet test control circuit module, a test data distribution circuit module, a memory test configuration circuit module, and a chiplet test interface circuit module. The chiplet test control circuit module is configured to provide test data and configure test modes for the chiplets to be tested. The test data distribution circuit module is configured to distribute the test data required by each of the chiplets to be tested from a test data bus. The memory test configuration circuit module is configured to provide test circuits for memories of the chiplets to be tested and automatically generate a test vector. The chiplet test interface circuit module is configured to transmit the test data to the chiplets to be tested in any direction through chiplet test interfaces.

Abstract: A light beam processor includes a first light beam amplifying apparatus, a second light beam amplifying apparatus, and a light source generating apparatus. The light source generating apparatus is configured to emit a light source beam to the first light beam amplifying apparatus. The first light beam amplifying apparatus is configured to perform an initial amplification on the light source beam to obtain an amplified light beam. The second light beam amplifying apparatus is configured to perform a secondary amplification on the amplified light beam to obtain a target light beam. The target light beam is used as an output light beam of the light beam processor.

Abstract: An automatic leveling type maintenance platform for a high-temperature gas cooled reactor is provided. A floating plate is automatically leveled by using a leveling liquid. During leveling, only a water driving assembly needs to be controlled to drive a housing to be close to an inner bottom surface of a liquid storage container. A sliding block assembly and a lifting guide mechanism are controlled to be locked and fixed after the floating plate is leveled. The floating plate can allow for automatic and rapid leveling and locking operation. Thus, complex and time-consuming fine adjustment control does not need to be performed. Also, when the platform is used in a spherical top cap of a pressure vessel of the reactor for a maintenance operation, then support legs of a support assembly do not need to have telescopic motion.

Abstract: An automatic leveling type maintenance platform for a high-temperature gas cooled reactor is provided. A floating plate is automatically leveled by using a leveling liquid, and during leveling, only a water driving assembly needs to be controlled to drive a housing to be close to an inner bottom surface of a liquid storage groove, and a sliding block assembly and a lifting guide mechanism are controlled to be locked and fixed after the floating plate is leveled. In this way, complex and time-consuming fine adjustment control does not need to be performed, and the floating plate can implement automatic and rapid leveling and locking operation, so that a leveling effect is better. When the maintenance platform is used in a spherical top cap of a pressure vessel of the high-temperature gas cooled reactor for maintenance operation, support legs of a support assembly do not need to perform telescopic motion.

Abstract: Disclosed is a mode scrambler. The mode scrambler includes a fastening connection component, a first translation plate and a second translation plate. The fastening connection component is provided with an L-shaped groove for placing an optical fiber. The first translation plate and the second translation plate are both connected to the fastening connection component, the first translation plate is configured to reciprocate relatively to the fastening connection component along a radial direction of the optical fiber, and the second translation plate is configured to reciprocate relatively to the fastening connection component in a vertical direction. The second translation plate is abutted against a top of the optical fiber and is in close contact with a part of the sinusoidal surface of the first translation plate. The optical fiber is enclosed among the fastening connection component, the first translation plate and the second translation plate.

Abstract: Disclosed are a narrow pulse width laser, a method for emitting narrow pulse width laser, a device, and a storage medium. The narrow pulse width laser includes: a pulse signal controller and a pulse laser emitter. An output end of the pulse signal controller is connected to an input end of the pulse laser emitter. The pulse signal controller is configured to obtain a first pulse signal and a second pulse signal, the first pulse signal is identical to the second pulse signal, the first pulse signal is controlled to delay for obtaining a delay signal, there is a target phase difference between the delay signal and the second pulse signal, the delay signal is superimposed on the second pulse signal to obtain a target pulse signal.

Abstract: A method for preventing feedback light of a laser, includes fusion-splicing a target fiber to an output fiber of a laser, so that laser lights generated by the laser are output from the target fiber. A refractive index of a core of the output fiber of the laser is less than a refractive index of a core of the target fiber. When a feedback light of a laser light of the laser is reversely transmitted to a fusion-splicing surface through the target fiber, total reflection occurs due to a refractive index difference on the fusion-splicing surface, so that the feedback light is transmitted along the transmission direction of the laser light, and is prevented from entering the output fiber along the reverse direction of the laser light and further entering the laser's resonant cavity to damage the laser component or burn out the gain fiber.

Abstract: A multi-module fiber laser capable of monitoring abnormalities of optical modules in real time. In the multi-module fiber laser, the CAN bus is employed to directly obtain whether each of the slave control modules or the master control module is in normal working condition, so that the CAN bus is at the status level corresponding to whether all modules are in normal working state, namely, the CAN bus that is configured to transmit the light control signal issued by the master control module. The status level of the slave control module or the combiner module is also transmitted via the CAN bus, so that all the slave control modules can quickly put themselves in the corresponding working state according to the status level of the CAN bus.

Abstract: An optical fiber laser coupler, comprising a laser input optical cable, a laser shaping and coupling device, and a multi-beam-mode energy transmission fiber (205). The multi-beam-mode energy transmission fiber (205) comprises a circular fiber core (105) and annular fiber cores (106, 107), and each annular fiber core (106, 107) is coaxial with the circular fiber core (105). A fluorine-doped layer (109) is disposed between the circular fiber core (105) and the annular fiber core (106, 107), and the fluorine-doped layer (109) is also disposed between adjacent annular fiber cores (106, 107). An adjustable collimating lens group (203) and an adjustable focusing lens group (204) of the laser shaping and coupling device can horizontally move along a direction of a laser beam in a housing of the laser shaping and coupling device.

Abstract: An optical fiber laser coupler, comprising a laser input optical cable, a laser shaping and coupling device, and a multi-beam-mode energy transmission fiber (205). The multi-beam-mode energy transmission fiber (205) comprises a circular fiber core (105) and annular fiber cores (106, 107), and each annular fiber core (106, 107) is coaxial with the circular fiber core (105). A fluorine-doped layer (109) is disposed between the circular fiber core (105) and the annular fiber core (106, 107), and the fluorine-doped layer (109) is also disposed between adjacent annular fiber cores (106, 107). An adjustable collimating lens group (203) and an adjustable focusing lens group (204) of the laser shaping and coupling device can horizontally move along a direction of a laser beam in a housing of the laser shaping and coupling device.

Abstract: A method for preventing feedback light of a laser, includes fusion-splicing a target fiber to an output fiber of a laser, so that laser lights generated by the laser are output from the target fiber. A refractive index of a core of the output fiber of the laser is less than a refractive index of a core of the target fiber. When a feedback light of a laser light of the laser is reversely transmitted to a fusion-splicing surface through the target fiber, total reflection occurs due to a refractive index difference on the fusion-splicing surface, so that the feedback light is transmitted along the transmission direction of the laser light, and is prevented from entering the output fiber along the reverse direction of the laser light and further entering the laser's resonant cavity to damage the laser component or burn out the gain fiber.

Abstract: A multi-module fiber laser capable of monitoring abnormalities of optical modules in real time. In the multi-module fiber laser, the CAN bus is employed to directly obtain whether each of the slave control modules or the master control module is in normal working condition, so that the CAN bus is at the status level corresponding to whether all modules are in normal working state, namely, the CAN bus that is configured to transmit the light control signal issued by the master control module. The status level of the slave control module or the combiner module is also transmitted via the CAN bus, so that all the slave control modules can quickly put themselves in the corresponding working state according to the status level of the CAN bus.