• PPLN Mixers

      For your application convenience and time-to-publication/time-to-market, HC Photonics provides PPLN mixers which integrate PPLN chips into a convenient, compact, robust, cost-effective packaged format. Through well-packaged format and convenient input/output laser coupling interfaces, we assist in your engineering/production efforts for your full-spectrum laser generation, sensing and applications.

      PPLN Bulk Mixer

      PPLN Waveguide Mixer

      PPLN Cavity Mixer

      PPLN Pulse Mixer

    • PPLN Bulk Mixers

      PPLN bulk mixers are frequency conversion modules which integrate PPLN bulk chips into a convenient, compact, robust, cost-effective packaged format for your application convenience. Optimized for your desired input pump lasers and frequency mixing configurations, PPLN bulk mixers provide the polarization maintained output either in free space or optical fiber, with available output wavelength ranging from UV/Visible to NIR/MIR and output power up to few Watts.

      Key features

      • Single-pass & high-efficiency, optimized for your specified input pumps
      • Available output wavelength from UV/Visible to NIR/MIR
      • Available mixing configuration from fundamental type to advanced type (such as SHG, SFG, DFG, Cascaded SHG-SFG (THG), Tunable etc.)
      • Available for fiber or free space as input/output coupling interfaces (such as 1x0, 1x1, 2x0, 2x1, 0x0 , 0=free space, 1=one fiber, 2=dual fibers, with optional alignment beam for free space input)
      •  Available with integrated thermistor/TEC for QPM temperature optimization & optional photodiode (PD) for power monitoring/automatic power control
      • Convenient, compact and robust and available for a variety of application customizations

      Bestseller

      Five color series corresponding to the different wavelength range are our Best-seller selections designed for the specific application such as laser microscopy or atom trapping. Detailed specifications are shown below. Alternatively, contact us for your specific wavelength or requirements.

      General Specifications

      Excellent beam quality

      Power scaling of bulk mixer-G (532 nm)

      Thermal Reliability

      1. Second-harmonic generation (SHG)

      2. HC Photonics offers the best sellers at these wavelengths within +/- 0.5 nm. Custom wavelengths are available upon request.

      3. SHG power is pump dependent. Please contact us for different power requirements with your pump conditions.

      4. Typical coupling efficiency is 75% with single mode PM fiber. Please contact us for higher efficiency.

      Example available configurations:

    • PPLN Waveguide Mixers: super efficient frequency converter

      PPLN waveguide mixers are frequency conversion modules which integrate PPLN waveguide chips into a convenient, compact, robust, cost-effective packaged format for your application convenience. With waveguide structure, PPLN waveguide mixers have higher efficiency in single-pass configuration as compared to bulk mixers. Optimized for your desired input pump lasers, PPLN waveguide mixers provide the polarization maintained output either in free space or optical fiber, with available output wavelength ranging from UV/Visible to NIR/MIR and output power up to sub-Watt or even up to Watt level.

      Please check the details with "Reference specifications" below.

      Key features

      • Single-pass & high-efficiency, optimized for your specified input pumps
      • Available output wavelength from UV/Visible to NIR/MIR
      • Available mixing configuration from fundamental type to advanced type (such as SHG, SFG, and DFG etc.)
      • Available for fiber or free space as input/output coupling interfaces (such as 1x0, 1x1, 2x0, 2x1, 0x0 , 0=free space, 1=one fiber, 2=dual fibers
      • Optional alignment beam for free space input
      • Available with integrated thermistor/TEC for QPM temperature optimization & optional photodiode (PD) for power monitoring/automatic power control
      • Convenient, compact and robust and available for a variety of application customizations

      Bestseller

      1. The wavelengths of the best sellers are within +/- 0.5 nm typically. Custom wavelengths are available upon request. 
      2. The SHG conversion efficiency is conservatively listed by pump condition with single-longitudinal mode lasers.  Normally the efficiency could be doubled with multi-longitudinal mode lasers e.g. 180%/W @532 nm.
      3. Typical coupling efficiency is >75%~ 80% with single mode PM fiber.  Higher efficiency is available. 
         

      Example available configurations:

      Reference specifications

      To avoid possible damage on fiber connectors, direct fiber splicing is recommended. However, if FC/APC or FC/PC connectors are needed, one can use commercially available components to handle fiber connection such as Fiber-to-Fiber U-Benches. (Thorlabs Inc.)

      Typical PM fibers used for PPLN bulk and Waveguide Mixers

    • PPLN Cavity Mixers

      Cavity configuration is an alternative way to enhance nonlinear frequency conversion. For your application convenience, we have developed cavity mixer platform which can be customized to a variety of mixer applications, such as external pump OPO (EP-OPO), Intra-cavity OPO (IC-OPO), intra-cavity SFG (IC-SFG), intra-cavity DFG (IC-DFG) etc. Example applications are for generating NIR signal wavelengths between 1.4-2 um and MIR idler wavelengths between 2.3-4.5 um.

      Key features

      • Cavity enhanced & high-efficiency, optimized for your specified input pump or desired output signal/idler 
      • Available output wavelength from UV/Visible to NIR/MIR
      • Available mixing configuration from fundamental type to advanced type      (such as IC-OPO, IC-SFG, IC-SHG, IC-DFG, EP-OPO etc.)
      • Available for fiber or free space as input/output coupling interfaces
      • Available with integrated thermistor/TEC for QPM temperature  optimization & optional photodiode (PD) for power monitoring/automatic power control
      • Convenient, compact and robust and available for a variety of application customization
      Photos of OPO-B/OPO-S

      Example: IC-OPO

      an ultra-low power consumed optical parametric oscillator (OPO)

      The intracavity design of the OPO utilizes the high circulating power in the cavity to achieve extremely low threshold pump power. 4 series with 3 wavelength cover ranges are provided upon request.

       

      OPO-B and OPO-S are the OPO module with fixed wavelength specified by the customer in the range of either α, β or γ. In contrast, OPO-TB and OPO-TS are the wavelength tunable OPO that cover the entire range.

       

      B: broad bandwidth (few nm)

      S: single longitudinal mode

      T: tunable

      e.g. OPO-TS: tunable, single longitudinal mode

      Frequency stability of the OPO-S-β

      power scaling of OPO-B-α

      Example available configurations:

      Reference specifications

    • PPLN Pulse Mixers

      PPLN under pulse operation (ns/ps/fs) can be classified in a special category due to its unique features. Under high peak power operation, conversion efficiency in general could be relatively higher and could even enable OPA/OPG applications. However. crystal damage, pulse spectrum, and temporal walk-off effect in general needs to be taken into special consideration. We have developed several pulse bulk/waveguide mixers with optimization of above special pulse conditions.

      Key features

      • Pump by ns-Q switch laser or ps/fs ultrafast laser, with spectrum, temporal walk-of and damage optimization.
      • Available output wavelength from UV/Visible to NIR/MIR 
      • Available mixing configuration from fundamental type to advanced type     (such as SHG/SFG/DFG, or OPA/OPG etc.)
      • Available for fiber or free space as input/output coupling interfaces      (such as 1x0, 1x1, 2x0, 2x1, 0x0 , 0=free space, 1=one fiber, 2=dual fibers, with optional alignment beam for free space input) 
      • Available with integrated thermistor/TEC for QPM temperature optimization & optional photodiode (PD) for power monitoring/automatic power control
      • Convenient, compact and robust and available for a variety of application customizations

      Example available configurations:

      Reference specifications

    • Need customization? Don't hesitate but contact us now!

      OEM module is welcome as well!

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