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在密集波分复用系统、高速光通信研发及精密光谱分析领域，对多路光波长的精确测量是确保系统性能与稳定性的核心环节。安捷伦（Agilent，现为是德科技Keysight）86120C多波长计凭借其出色的波长精度、多通道同步测量能力及卓越的动态范围，成为光通信测试与计量领域公认的经典仪器。
为确保此类精密光学测量仪器持续提供准确可靠的数据，定期的专业校准与精细维护至关重要。深圳市宝安区沙井方丰瑞仪器设备经营部在光通信测试与精密计量服务领域拥有深厚积累，可为86120C用户提供从校准、维护到应用支持的全方位技术服务。
86120C：定义多波长测量精度
核心性能与技术特点：
卓越的波长测量精度与分辨率
波长测量范围覆盖 1270 nm 至 1650 nm，完整涵盖O、E、S、C、L等通信波段。
绝对波长精度高达 ±0.3 ppm（典型值），在1550 nm处对应 ±0.0005 nm，为系统提供可靠的绝对波长基准。
波长分辨率达 0.1 pm，可精确分辨密集的DWDM信道。
强大的多通道同步测量能力
支持 最多512个波长通道 的同时测量与分析，极大提升测试效率。
动态范围 > 80 dB，可同时测量高强度信号与微弱信号。
功率测量精度达 ±0.5 dB，提供可靠的光功率监测数据。
先进的测量与分析功能
集成 光谱信噪比（OSNR） 测量功能，满足DWDM系统性能评估需求。
提供 光纤布拉格光栅（FBG）分析 模式，支持分布式光纤传感系统测试。
支持 激光器调谐特性 分析，便于可调谐激光源的研发与验证。
灵活的系统集成与连接性
标配 GPIB、LAN 接口，支持SCPI指令，便于集成到自动化测试系统中。
可与 是德科技81600系列可调谐激光源 等设备无缝协同，构建完整的光器件测试平台。
典型应用场景
DWDM系统测试与验收：密集波分复用系统的波长通道功率、中心波长及OSNR性能验证。
可调谐激光器与光模块表征：测量激光器的波长调谐范围、稳定性及边模抑制比。
光无源器件测试：滤波器、波分复用器/解复用器的中心波长、带宽及带内平坦度测量。
科研与计量：在高校与计量机构中，用于高精度波长测量研究与标准传递。
专业校准保障光学计量溯源性
多波长计的测量精度依赖于其内部干涉仪的稳定性和校准源的准确性。其波长与功率的绝对精度会随时间发生缓慢漂移，必须通过更高级别的标准进行定期校准与溯源。
深圳市宝安区沙井方丰瑞仪器设备经营部在此领域能够为用户提供关键支持：
绝对波长精度校准：使用经国家基准溯源的碘稳频氦氖激光器或乙炔吸收稳频激光源等高精度波长标准，对86120C的波长测量精度进行校准，确保其绝对准确性。
功率线性度与精度校准：使用可溯源的标准光功率计，校准其功率测量功能在各功率电平下的线性度与绝对精度。
通道一致性验证：验证多通道测量时各通道间波长与功率读数的一致性。
光学系统清洁与校准：提供光学窗口、内部光路的专业清洁服务，并对准直系统进行优化调整。
故障诊断与维修：对波长读数漂移、功率测量异常、无法锁定信号、通讯故障等问题进行深度诊断与专业修复。
结语
安捷伦86120C多波长计以其经典的迈克耳逊干涉仪设计、无与伦比的波长精度和强大的多通道能力，确立了其在光通信测试与计量领域的标杆地位。它不仅是完成测试任务的工具，更是确保DWDM系统波长精度和进行前沿光学研究的基石仪器。
确保这一光学计量基准的长期精准，是一项要求极高专业光学知识与精密操作能力的任务。通过与 深圳市宝安区沙井方丰瑞仪器设备经营部 这样的专业服务伙伴合作，用户可以确保其86120C多波长计始终处于最佳计量状态，从而为光通信系统的部署、研发与质量控制提供坚实、可信赖的波长与功率数据支撑。
Keysight 86120C Multi-Wavelength Meter: Defining Precision in Multi-Wavelength Measurement
In dense wavelength division multiplexing (DWDM) systems, high-speed optical communication R&D, and precision spectral analysis, accurate multi-channel wavelength measurement is central to ensuring system performance and stability. The Agilent 86120C Multi-Wavelength Meter (now Keysight Technologies) has become a recognized classic instrument in optical communication testing and metrology due to its outstanding wavelength accuracy, multi-channel synchronized measurement capability, and exceptional dynamic range.
To ensure that such precision optical measurement instruments continue to provide accurate and reliable data, regular professional calibration and meticulous maintenance are crucial. The Shenzhen Bao'an Shajing Fangfengrui Instrument Equipment Business Department, with its deep expertise in optical communication testing and precision metrology services, offers comprehensive technical services for 86120C users—from calibration and maintenance to application support.
86120C: Defining Multi-Wavelength Measurement Accuracy
Core Performance and Technical Features:
Exceptional Wavelength Measurement Accuracy and Resolution:
Wavelength measurement range covers 1270 nm to 1650 nm, fully encompassing O, E, S, C, and L communication bands.
Absolute wavelength accuracy as high as ±0.3 ppm (typical), corresponding to ±0.0005 nm at 1550 nm, providing a reliable absolute wavelength reference for systems.
Wavelength resolution reaches 0.1 pm, enabling precise discrimination of dense DWDM channels.
Powerful Multi-Channel Synchronized Measurement Capability:
Supports simultaneous measurement and analysis of up to 512 wavelength channels, significantly enhancing testing efficiency.
Dynamic range > 80 dB, allowing simultaneous measurement of high-intensity and weak signals.
Power measurement accuracy of ±0.5 dB, providing reliable optical power monitoring data.
Advanced Measurement and Analysis Functions:
Integrated Optical Signal-to-Noise Ratio (OSNR) measurement function meets DWDM system performance evaluation needs.
Provides Fiber Bragg Grating (FBG) analysis mode, supporting distributed fiber sensing system testing.
Supports laser tuning characteristic analysis, facilitating R&D and verification of tunable laser sources.
Flexible System Integration and Connectivity:
Standard GPIB and LAN interfaces support SCPI commands, enabling easy integration into automated test systems.
Can seamlessly work with devices such as the Keysight 81600 series tunable laser sources to build a complete optical device test platform.
Typical Application Scenarios
DWDM System Testing and Acceptance: Verification of wavelength channel power, center wavelength, and OSNR performance for dense wavelength division multiplexing systems.
Tunable Laser and Optical Module Characterization: Measurement of laser wavelength tuning range, stability, and side-mode suppression ratio.
Passive Optical Device Testing: Measurement of center wavelength, bandwidth, and in-band flatness for filters and wavelength multiplexers/demultiplexers.
Research and Metrology: Used in universities and metrology institutions for high-precision wavelength measurement research and standard transfer.
Professional Calibration Ensures Optical Metrology Traceability
The measurement accuracy of a multi-wavelength meter depends on the stability of its internal interferometer and the accuracy of its calibration source. Its absolute wavelength and power accuracy can drift slowly over time and must be regularly calibrated and traced to a higher-level standard.
The Shenzhen Bao'an Shajing Fangfengrui Instrument Equipment Business Department provides key support in this area:
Absolute Wavelength Accuracy Calibration: Uses high-precision wavelength standards such as iodine-stabilized helium-neon lasers or acetylene absorption-stabilized laser sources traceable to national standards to calibrate the wavelength measurement accuracy of the 86120C, ensuring its absolute correctness.
Power Linearity and Accuracy Calibration: Uses traceable standard optical power meters to calibrate the linearity and absolute accuracy of its power measurement function across various power levels.
Channel Consistency Verification: Verifies the consistency of wavelength and power readings across all channels during multi-channel measurement.
Optical System Cleaning and Alignment: Provides professional cleaning services for optical windows and internal optical paths and optimizes the alignment of the collimation system.
Fault Diagnosis and Repair: Performs in-depth diagnosis and professional repair for issues such as wavelength reading drift, abnormal power measurement, signal lock failure, and communication faults.
Conclusion
The Agilent 86120C Multi-Wavelength Meter has established its benchmark status in optical communication testing and metrology with its classic Michelson interferometer design, unparalleled wavelength accuracy, and powerful multi-channel capability. It is not merely a tool for completing test tasks but a foundational instrument for ensuring DWDM system wavelength accuracy and conducting cutting-edge optical research.
Ensuring the long-term precision of this optical metrology benchmark is a task requiring extremely high professional optical knowledge and precise operational skills. By partnering with a specialized service provider like the Shenzhen Bao'an Shajing Fangfengrui Instrument Equipment Business Department, users can ensure their 86120C Multi-Wavelength Meter consistently operates in optimal metrological condition, thereby providing solid, trustworthy wavelength and power data support for the deployment, R&D, and quality control of optical communication systems.
