ROF PM 2000nm High Speed LiNbO3 Electro Optic Phase Modulator

• High-Speed 2000 nm Phase Modulation – Optimized for operation around 1950–2050 nm, ideal for emerging 2 µm fiber laser platforms and advanced infrared photonics applications.
• Low Insertion Loss – Typical insertion loss of 4.5 dB minimizes optical power penalties and helps maintain high system efficiency in demanding laser and communication setups.
• Low Half-Wave Voltage (Vπ) – Typical Vπ ≈ 5.0 V @ 50 kHz enables efficient phase modulation with relatively low drive voltages, reducing RF amplifier requirements and overall system cost.
• Broad Electrical Bandwidth up to 200 MHz – Operating frequency from DC to 200 MHz supports high‑speed phase modulation, frequency stabilization schemes, and complex modulation formats.
• Proton-Exchanged LiNbO₃ Waveguide Technology – Uses advanced lithium niobate proton exchange waveguide fabrication for stable performance, low propagation loss, and high optical damage threshold compared with many bulk or fiber-based alternatives.
• Polarization-Maintaining Fiber Pigtails – Equipped with Panda PM fibers at both input and output, ensuring stable state of polarization (SOP) and high polarization extinction ratio for precise phase control in coherent and interferometric systems.
• Excellent Polarization Extinction Ratio – High PER design (typical of modern PM LiNbO₃ modulators in this class) supports polarization-sensitive applications such as coherent combining and interferometric sensing at 2 µm.
• Low Optical Return Loss – Optical return loss better than −45 dB reduces back‑reflections into upstream lasers, enhancing laser stability and protecting sensitive laser sources.
• Wide Optical Input Power Handling – Supports up to +20 dBm (100 mW) input optical power at 2000 nm, suitable for many 2 µm fiber lasers and high‑brightness sources used in research and industrial systems.
• High Input Impedance RF Port – RF input impedance > 1 MΩ minimizes loading of external drivers, simplifies integration with laboratory signal sources, and supports low‑frequency / DC bias operation.
• SMA-Shielded RF Interface – Standard SMA (female) connector with shielding ensures good RF performance, reliable connections, and compatibility with common function generators and RF drivers.
• Multiple Fiber Connector Options – Available with FC/PC, FC/APC, or user‑specified connectors, allowing low‑reflection APC options for sensitive coherent systems and easy integration into existing fiber networks.
• Compact, Integrable Package – Small form factor modulator housing designed for benchtop and OEM integration into fiber laser, sensing, and communication platforms.
• Stable Operation Over Wide Temperature Range – Operating temperature from 0 to 70 °C supports both laboratory and industrial environments; storage from −40 to 85 °C ensures robustness during shipping and system downtime.
• High Humidity Tolerance – Designed to operate in relative humidity from 5% to 90%, making it suitable for varied environmental conditions when properly integrated.
• Ideal for 2 µm Fiber Lasers – Specifically targeted to 2 µm fiber laser systems for amplitude and phase control, Q‑switching schemes (via phase‑to‑amplitude conversion), and advanced waveform generation.
• PDH Laser Frequency Stabilization – Well‑suited for Pound–Drever–Hall (PDH) locking at 2 µm; its low Vπ and DC–200 MHz bandwidth are ideal for generating modulation sidebands for cavity‑stabilized lasers.
• Laser Coherent Combining and Beam Shaping – High PER and stable PM fibers support coherent beam combining and phase control across multiple channels, enabling power scaling and beam quality optimization at 2000 nm.
• Compatible with Laser Communication Systems – Phase modulation capability up to 200 MHz at 2 µm makes this device suitable for free‑space and fiber‑based optical communication links in the eye‑safer 2 µm band.
• Supports Advanced Photonic Experiments – Applicable to quantum optics, interferometry, LIDAR, spectroscopy, and other research that rely on stable and controllable phase modulation in the 2 µm region.

Applications of ROF-PM-2000 Series 2000 nm High-Speed Electro-Optic Phase Modulator

The ROF-PM-2000 series 2000 nm lithium niobate (LiNbO3) electro‑optic phase modulator is engineered for precision phase control in 2 μm photonics. With low insertion loss, low half‑wave voltage, high polarization extinction ratio, and DC–200 MHz bandwidth, it is suited for a wide range of advanced fiber‑optic and free‑space systems.

• 2 μm Fiber Laser Phase Modulation and Pulse Shaping
  Used to impart controlled phase modulation on 2 μm fiber laser outputs for temporal pulse shaping, frequency chirping, and phase encoding. Ideal for thulium‑ and holmium‑doped fiber laser systems where low insertion loss and PM fiber pigtails (Panda PM) are critical for maintaining polarization and beam quality.
• PDH (Pound–Drever–Hall) Laser Frequency Stabilization at 2 μm
  Enables generation of phase modulation sidebands required for PDH locking schemes around 2000 nm. The low Vπ and broad DC–200 MHz bandwidth support stable, high‑SNR error signals when locking 2 μm lasers to high‑finesse optical cavities, optical references, or etalons.
• Coherent Beam Combining of High‑Power 2 μm Lasers
  Provides fast, precise phase control for coherent combining architectures, including tiled and filled‑aperture arrays of 2 μm fiber or bulk lasers. The high polarization extinction ratio and PM fiber interfaces help preserve the coherence and polarization state required for high combining efficiency.
• Advanced Laser Communications at 2 μm
  Supports phase‑modulated and coherent optical communication formats (BPSK, QPSK, DPSK, and more complex modulation) in the 2 μm band. The DC–200 MHz operating frequency range covers many low‑ to medium‑speed coherent and phase‑encoded communication links used in free‑space optical (FSO) and specialty fiber‑optic systems.
• Free‑Space Optical Links and Atmospheric Transmission Experiments
  Well suited for experimental 2 μm free‑space optical communication links and atmospheric propagation studies, where eye‑safe wavelengths and reduced scattering are advantageous. The device can impose precise phase modulation for channel encoding, turbulence compensation tests, and adaptive optics research.
• High‑Energy and High‑Power Laser Phase Control
  Used in high‑energy 2 μm laser chains to adjust and stabilize optical phase for beam quality optimization, temporal shaping, and interference‑based diagnostics. The robust PM fiber interfaces, high return‑loss (ORL ≈ −45 dB), and low insertion loss support integration into high‑power architectures with minimal performance degradation.
• Frequency Comb Generation and Spectral Broadening at 2 μm
  When driven by appropriate RF waveforms, the phase modulator can generate optical sidebands around a 2 μm carrier, aiding in creation of discrete comb‑like spectra. This is valuable for spectroscopy, metrology, and multi‑wavelength 2 μm sources, especially in conjunction with additional intensity modulation or nonlinear broadening stages.
• Coherent Detection and Homodyne / Heterodyne Systems
  Facilitates phase dithering, pilot‑tone generation, and phase control in coherent detection setups at 2 μm. The modulator can be used to implement homodyne and heterodyne receivers, local oscillator phase tuning, and offset‑locking schemes between multiple 2 μm lasers.
• Optical Phase‑Locked Loops (OPLL) at 1950–2050 nm
  Serves as the actuating element in optical phase‑locked loops, enabling high‑speed phase correction of slave lasers relative to a master reference. The low Vπ (typically 5 V at 50 kHz) and high impedance RF input (SMA, >1 MΩ) make it convenient to drive from standard loop filter and RF electronics.
• Quantum Optics and Quantum Communication in the 2 μm Band
  Provides phase control for quantum key distribution (QKD), quantum state preparation, and entanglement experiments that operate around 2 μm. The device can be used to encode quantum information in the phase of single photons or weak coherent pulses traveling through PM fibers.
• Optical Sensing and Interferometric Measurement
  Used in interferometers (Mach–Zehnder, Michelson, Sagnac, and fiber‑optic gyroscopes) for phase biasing, active stabilization, and modulation‑based sensing at 2 μm. The high polarization extinction ratio and PM fiber pigtails improve fringe visibility and measurement stability in metrology and sensing applications.
• 2 μm Fiber‑Based LIDAR and Ranging Systems
  Enables phase or frequency modulation for coherent LIDAR architectures exploiting the 2 μm atmospheric window.