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    1550nm DFB Pigtail Laser Diode Module

    The 1550nm DFB Pigtail Laser Diode Module consists of Distributed Feedback (DFB) lasers, having a fiber pigtail precisely attached for optimum coupling efficiency. This 1550nm center wavelength version has a typical 1mW~4mW of output power and includes a back facet photodiode, and an integrated optical isolator. The 9/125 single mode fiber pigtail is terminated with an FC/APC or FC/PC style fiber optic connector. Applications include high-speed data and telecommunications systems and instrumentation, and optical instruments requiring a laser diode light source.
  • 1550nm 50mW DFB SM Fiber Coupled Laser Diode

    1550nm 50mW DFB SM Fiber Coupled Laser Diode

    The 1550nm 50mW DFB SM Fiber Coupled Laser Diode is single frequency laser diode module designed for optical measurement and communication. The laser is packaged in 14-pin standard butterfly package with monitor photodiode and thermo-electric cooler (TEC).
  • 1524-1572nm C-band ASE Broadband Light Source

    1524-1572nm C-band ASE Broadband Light Source

    The 1524-1572nm C-band ASE broadband light source is an extension of the wavelength range of the C band ASE broadband light source, covering the wavelength range of 1524-1572nm (frequency 190.65~196.675THz), with a spectral flatness better than 2.5dB.
  • 50um InGaAs Avalanche Photodiode Chip

    50um InGaAs Avalanche Photodiode Chip

    50um InGaAs Avalanche Photodiode Chip is photodiode with internal gain produced by the application of a reverse voltage. They have a higher signal-to-noise ratio (SNR) than photodiodes, as well as fast time response, low dark current, and high sensitivity. Spectral response range is typically within 900 - 1650nm.
  • 1290nm 5mW TO-CAN DFB Laser Diode

    1290nm 5mW TO-CAN DFB Laser Diode

    This 1290nm 5mW TO-CAN DFB Laser Diode is a product operable over a broad temperature range with a low temperature-wavelength coefficient. It is well suited for applications such as communications research, interferometry, and optical reflectometry for distance measurement in fiber or free space. Each device undergoes testing and burn-in. This laser comes packaged in a 5.6 mm TO Can. It contains an integrated aspheric focusing lens in the cap, allowing the focus spot and numerical aperture (NA) to be matched to SMF-28e+ fiber.
  • 976nm 600mW PM FBG Stabilized Pigtailed Butterfly Pump Laser Diode

    976nm 600mW PM FBG Stabilized Pigtailed Butterfly Pump Laser Diode

    The 976nm 600mW PM FBG Stabilized pigtailed butterfly Pump laser diode are designed as pump sources for erbium doped fiber amplifier (EDFA) applications. Processes and techniques of coupling the fiber to the laser allow high output powers that are very stable with both time and temperature. The grating is located in the pigtail to stabilize the wavelength. Devices are available with kink free output powers to 600mW. The 976nm 600mW PM FBG Stabilized pigtailed butterfly Pump laser diode series pump module utilises a Fiber Bragg Grating design for enhanced wavelength and power stability performance. This product has been designed to ensure superior wavelength locking over drive current, temperature and optical feedback changes.
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  • High-performance visible light holmium-doped all-fiber laser

    Directly generating visible light from compact all-fiber lasers while maintaining high output characteristics has always been a research topic in laser technology. Here, Ji et al. proposed a method to develop dual-wavelength lasers using the excitation mechanism in holmium-doped ZBLAN fluoride glass fibers, and experimentally achieved high output performance of all-fiber lasers, especially operating in the deep red band under 640 nm pumping. Notably, a maximum continuous wave output power of 271 mW was achieved at 750 nm with a slope efficiency of 45.1%, which is the highest direct output power recorded in all-fiber lasers with a core diameter of less than 10 μm in the deep red band.

  • What is the relationship between optical module wavelength and transmission distance

    The transmission distance of the optical module refers to the distance over which the optical signal can be directly transmitted without relay amplification. It is divided into three types: short-distance, medium-distance, and long-distance. Generally speaking, 2km and below are short distances, 10-20km are medium distances, and 30km, 40km and above are long distances. Optical modules of different wavelengths with different optical fibers correspond to different transmission distances.

  • Advantages and disadvantages of Raman fiber amplifiers

    Raman fiber amplifier (RFA) is an important part of dense wavelength division multiplexing (DWDM) communication system. In many nonlinear optical media, the scattering of pump light with a shorter wavelength causes a small part of the incident power to be transferred to another beam whose frequency is shifted down. The amount of frequency shift down is determined by the vibration mode of the medium. This process is called pulling Mann effect. If a weak signal and a strong pump light wave are simultaneously transmitted in the fiber, and the weak signal wavelength is placed within the Raman gain bandwidth of the pump light, the weak signal light can be amplified. This mechanism is based on stimulated Raman scattering The optical amplifier is called RFA.

  • How to test the transmittance and reflectance of optical components?

    When the incident light flux leaves from the illuminated surface or the incident surface of the medium to the other side, the ratio of the radiant energy projected and transmitted through the object to the total radiant energy projected on the object is called the transmittance of the object. The percentage of radiant energy reflected by an object to the total radiant energy is called reflectivity.

  • What is a Fiber-Optic Module?

    Optical fiber modules are components used to connect optical fiber cables to electronic devices. Optical fiber modules have many different parts, and different modules are designed to different specifications. Each part of the module is connected to a board that can be installed as a unit of electronic equipment.

  • The semiconductor laser market has broad prospects and a wide range of industry applications

    Semiconductor laser is a kind of laser developed in the 1960s, using semiconductor materials as working materials. Since the end of the 1970s, semiconductor lasers have clearly developed in two directions. One type is information-type lasers for the purpose of transmitting information, and the other type is power-type lasers for the purpose of directly using the optical power of the output laser.

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