Abstract: A method of operating an all-fiber-based ultra short pulse laser system is provided. The steps includes providing an all-fiber-based ultra short pulse laser system having a pulse pump light source, a fiber saturable absorber, an assistant light source, at least a dispersion fiber, and a light coupling output; generating a broadband ASE via the pulse pump light source; making the all-fiber-based ultra short pulse laser system switch passive mode locking via the fiber saturable absorber; decreasing the restoring period of the fiber saturable absorber via the assistant light source; providing dispersion compensation via the dispersion fiber to output an ultra short pulse; and partially outputting a laser passing through the all-fiber-based ultra short pulse laser system via the light coupling output.

Abstract: A UV light generator for receiving a baseband light beam from a baseband light source is provided. The UV light generator includes a first lens unit, a second lens unit, a first frequency doubling crystal and a second frequency doubling crystal. The baseband light beam from the baseband light source passes through the first lens unit. The first lens unit and the second lens unit control a minimum of baseband light spot position and a minimum of second harmonic light spot position. The first frequency doubling crystal is disposed between the first lens unit and the second lens unit, and located on the minimum of baseband light spot position. The second frequency doubling crystal is disposed between the first lens unit and the second lens unit, and located on the minimum of second harmonic light spot position.

Abstract: A linear-cavity all-fiber-based ultra short pulse laser system is provided. The all-fiber-based ultra short pulse laser system includes a pulse pump light source, a gain fiber, a first fiber signal pump combining unit, a broadband optical isolator, a fiber saturable absorber, an assistant light source, a second fiber signal pump combining unit, and a light coupling output. A broadband amplified spontaneous emission, emitted by the first fiber signal pump combining unit, which is connected to the pulse pump light source and the gain fiber, passes through the broadband optical isolator. The second fiber signal pump combining unit is connected to the assistant light source and the fiber saturable absorber. An ASE signal actively provides passive mode locking of the cavity, and the light coupling output partially outputs the laser. A dispersion fiber controls the temporal width.

Abstract: A mode-locked laser system comprises a stimulating laser pump, a pulse-modulating laser pump, and an optical oscillator. The stimulating laser pump and the pulse-modulating laser pump emit a stimulating laser light and a pulse-modulating laser light. The optical oscillator further includes a gain medium, a saturable absorber, a first terminal, and a second terminal. The stimulating laser light and the pulse-modulating laser light are emitted into the gain medium to generate a gain laser light. When the gain laser light is emitted into the saturable absorber, an ultra-short pulse laser light is generated.

Abstract: An optical fiber with filtering thin film includes a first ferrule having a first through hole and a first contact surface. A first fiber is disposed into the first through hole, extending to the first contact surface. A first interface coupling material is between the first ferrule and the first fiber. A second ferrule has a second through hole and a second contact surface. A second fiber is disposed into the second through hole, extending to the second contact surface. A second interface coupling material is between the second ferrule and the second fiber. The first contact surface and the second contact surface are parallel and have an included tilt angle from a perpendicular transverse plane of first fiber. An optical filtering film is disposed between the first contact surface and the second contact surface. The first fiber and the second fiber are aligned.

Abstract: A single-motor massager has a housing, a carriage and a lead threaded rod mounted in the housing, a guiding assembly, two transmission assemblies and a driving assembly mounted in the carriage, and two massage assemblies respectively driven by the transmission assemblies. The lead threaded rod has a right-handed thread and a left-handed thread so the carriage moves back and forth along the lead threaded rod and the massage assemblies can massage a large area of an operator's back. One of the transmission assembly has a one-way bearing so the carriage is able to stop at any position of the lead threaded rod and the massage assemblies are able to focus on a massage function at a specific position.

Abstract: A polarization modulation device for wideband laser comprises a first polarization maintaining optical fiber, a second polarization maintaining optical fiber, and a non-polarization maintaining optical fiber. The non-polarization maintaining optical fiber includes a first polarization controller coupled with the first polarization maintaining optical fiber, and a second polarization controller coupled with the second polarization maintaining optical fiber.

Abstract: A single-motor massager has a base, a carriage, a gear shaft assembly, a massager assembly and a motor. The base has two gear racks. The carriage is mounted movably on the base. The gear shaft assembly is mounted on the carriage and is mounted movably on the gear racks of the base. The massaging assembly is mounted on the carriage and connects to the gear shaft assembly. The motor drives the massaging assembly of the massager assembly to provide massaging function and to move the carriage and the gear shaft assembly and the massaging assembly along the base. With the two gear racks, the massaging assembly moves stably. With only one motor and the simplified gear shaft assembly and massager assembly, the manufacturing process of the massager is simplified and the cost of the massager is reduced.

Abstract: Methods for channel scanning are provided. An embodiment of a method for channel scanning comprises scan progress information stored when interrupting a channel scanning process. A carrier RF subsequent to the most recently processed carrier RF is locked onto with reference to the stored scan progress information when resuming the interrupted channel scanning process. Channel information of a program carried by the locked carrier RF is acquired. The acquired channel information of the program is stored in a channel table.

Abstract: A biodegradable composition includes: a polymer component including a first polymer of polybutylene-1,4-succinate (PBS); and a cross-linking agent capable of producing a free radical to allow the polymer component to be subjected to a free radical cross-linking reaction in such a condition that the biodegradable composition has a melt index ranging from 1.5 to 3.0.

Abstract: A biodegradable tableware includes a molded structure made from a biodegradable plastic composition including polybutylene-1,4-succinate. A biodegradable cosmetic case is also provided.

Abstract: A biodegradable net-shaped article includes: a net structure made from a biodegradable plastic composition which includes a major component selected from polybutylene-1,4-succinate, polybutylene succinate adipate, and combinations thereof. A biodegradable filament-shaped article made from the biodegradable plastic composition is also disclosed.

Abstract: Methods for channel scanning are provided. An embodiment of a method for channel scanning comprises scan progress information stored when interrupting a channel scanning process. A carrier RF subsequent to the most recently processed carrier RF is locked onto with reference to the stored scan progress information when resuming the interrupted channel scanning process. Channel information of a program carried by the locked carrier RF is acquired. The acquired channel information of the program is stored in a channel table.

Abstract: An electronic device capable of starting up in a low-temperature environment and a startup method for starting up the electronic device in the low-temperature environment and provide a stable operation temperature. The electronic device includes a temperature detection unit, a plurality of electronic elements, a storage unit, and a control unit. The electronic elements connects to the temperature detection unit. The storage unit stores a temperature monitoring process and an operating system. The control unit electrically connects to the temperature detection unit, the electronic elements, and the storage unit. The control unit acquires an operation temperature of the electronic elements through the temperature detection unit.

Abstract: A linear-cavity all-fiber-based ultra short pulse laser system is provided. The all-fiber-based ultra short pulse laser system includes a pulse pump light source, a gain fiber, a first fiber signal pump combining unit, a broadband optical isolator, a fiber saturable absorber, an assistant light source, a second fiber signal pump combining unit, and a light coupling output. A broadband amplified spontaneous emission, emitted by the first fiber signal pump combining unit, which is connected to the pulse pump light source and the gain fiber, passes through the broadband optical isolator. The second fiber signal pump combining unit is connected to the assistant light source and the fiber saturable absorber. An ASE signal actively provides passive mode locking of the cavity, and the light coupling output partially outputs the laser. A dispersion fiber controls the temporal width.

Abstract: An apparatus for adjusting a prompt voice depending on an environment comprises a receiver module used for receiving a background sound, an analyzer module generating a control signal according to the background sound and an output module adjusting an output frequency of a prompt voice through the control signal and outputting the adjusted prompt voice.

Abstract: A ring-cavity or linear-cavity all-fiber-based ultra short pulse laser system and method of operating the same are provided. The all-fiber-based ultra short pulse laser system includes a pulse pump light source, a gain fiber, a first fiber signal pump combining unit, a broadband optical isolator, a fiber saturable absorber, an assistant light source, a second fiber signal pump combining unit, and a light coupling output. The first fiber signal pump combining unit is respectively connected to the pulse pump light source and the gain fiber to emit broadband amplified spontaneous emission, then the broadband amplified spontaneous emission passes through the broadband optical isolator. The second fiber signal pump combining unit is respectively connected to the assistant light source and the fiber saturable absorber. An ASE signal actively provides passive mode locking of the cavity, and the light coupling output partially outputs the laser. A dispersion fiber controls the temporal width.

Abstract: A method includes forming an aluminum alloy structure, performing a first anodizing process to form a first color layer on the aluminum alloy structure, performing a first cutting process to form at least one first working groove in the first color layer and the aluminum alloy structure, performing a second anodizing process to form a second color layer in the first working groove, performing a second cutting process to form at least one second working groove in the first color layer and the aluminum alloy structure, and performing a third anodizing process to form a third color layer in the second working groove. Thus, the aluminum alloy structure is worked by cutting processes and anodizing processes to form an aluminum alloy product so that the aluminum alloy product has multiple color layers.

Abstract: An affective model device and a method of deciding the behavior of an affective model device are provided. The affective model device has affective components representing trait, attitude, mood, emotion, and the like. The affective model device updates the emotion at regular time intervals or when a stimulus is received, and decides the behavior based on the updated emotion. The emotion may be updated depending on trait, attitude, and mood.

Abstract: A UV light generator for receiving a baseband light beam from a baseband light source is provided. The UV light generator includes a first lens unit, a second lens unit, a first frequency doubling crystal and a second frequency doubling crystal. The baseband light beam from the baseband light source passes through the first lens unit. The first lens unit and the second lens unit control a minimum of baseband light spot position and a minimum of second harmonic light spot position. The first frequency doubling crystal is disposed between the first lens unit and the second lens unit, and located on the minimum of baseband light spot position. The second frequency doubling crystal is disposed between the first lens unit and the second lens unit, and located on the minimum of second harmonic light spot position.