In high-precision fiber optic sensing systems, high-end CATV networks, and coherent communication fields, controlling optical signal reflection is paramount. Traditional PC or UPC connectors struggle to completely eliminate Fresnel reflection at the connection point. APC (Angled Physical Contact) connectors solve this problem by grinding the fiber end-face at an 8° angle, pushing the Return Loss (RL) to the limit of 60dB.
However, the realization of APC connector performance relies entirely on the precision alignment of the adapter. If the adapter fails to accurately lock the connector's angle, the 8° bevel will misalign, leading to a sharp increase in reflection.
[Beijing Dacheng Yongsheng Technology Co., Ltd. (DCYS)] provides high-precision adapters specially optimized to ensure your APC connectors achieve their designed peak performance.
I. The Core Challenge of APC Adapters: Dual Locking Mechanism
For perfect APC connector mating, the adapter must simultaneously achieve two critical tasks: axial alignment and angle locking.
- Axial Alignment (Centricity): Ensuring the fiber cores of both fibers are aligned with micron-level precision (a basic requirement for all adapters).
- Angle Locking (Rotation): Ensuring the two 8° angled end-faces mate precisely in the same rotational plane, without rotational misalignment.
The OFSCN® APC adapter achieves this dual lock through the perfect cooperation of the Keyway and the Precision Sleeve:
- Precision Keyway Design: The adapter's housing and internal structure feature a high-precision Keyway that mates snugly with the key on the APC connector. The keyway tolerance is strictly controlled, effectively preventing the connector from rotating inside the adapter and ensuring the 8° polished surfaces always meet at the correct angle.
- High Elasticity and Low Tolerance: The high-precision ceramic sleeve inside the adapter, while providing axial alignment, also offers stable support force to the connector ferrule, guaranteeing firm end-face contact.
II. Superior Performance: Ultimate Guarantee for Return Loss
The quality of an APC adapter is directly reflected in the system's ability to suppress reflected signals.
- Return Loss (RL) Maintenance: Our adapter ensures that the connection maintains a Return Loss performance of 60dB after mating. This is vital for Fiber Bragg Grating (FBG) sensing, high-speed coherent communication, and demanding test systems.
- Repeatability and Durability: Thanks to the robust keyway design and wear-resistant ceramic sleeve, the adapter's ability to lock the 8° angle does not degrade after repeated mating cycles, thus ensuring the system maintains ultra-low reflection throughout long-term use.
III. Standardization and Compatibility: The APC Adapter Series
OFSCN® offers a full range of APC adapters to meet various equipment interface requirements:
- FC/APC Adapter: Suitable for high-precision sensing and test equipment, where the highest positioning accuracy for the keyway is required.
- SC/APC and LC/APC Adapters: Ideal for high-density data centers and PON networks, offering greater convenience for mating and unmating.
- Hybrid APC Adapters: Customizable for connecting different types of APC connectors (e.g., SC/APC to LC/APC), facilitating flexible inter-system patching.
Choosing the OFSCN® Adapter means you are choosing the highest respect and precise guarantee for the performance of your APC connectors. We ensure that every connection is a perfect 8° mate, minimizing optical signal reflection and maximizing your system's performance and data quality.
[Beijing Dacheng Yongsheng Technology Co., Ltd. (DCYS)]
Official Website: https://www.ofscn.org
Product Link: https://www.ofscn.org/connectors/fiber-optic-adapter.html