마이크로 고출력 편광 빔 스플리터 큐브
The polarizing beam splitter cube is designed with precision for high-power lasers that split the incoming light into transmitted (P-light) and reflected light (S-light), depending on the state of polarization. This element plays a very important role in high-energy laser path control, power monitoring, optical modulation, and interferometry.
특징
- High power tolerance: Laser damage threshold ≥10 J/cm²@10ns
- 높은 편광 대비: P 광 투과율 >98%, S 광 반사율 >99.5%
- High optical accuracy: Surface flatness λ/[email protected] nm parallelism ≤3″
- Stable structure: Cube bonding structure, optical path without offset, stable
- 다중 파장 옵션: 532nm, 633nm, 780nm, 808nm, 1064nm, 1550nm
공유 대상:
호빗 offers a wide range of polarizing beam splitter cubes for various applications, such as laser processing, spectroscopic instruments, scientific research experiments, and communication modules with excellent polarization separation performance, thermal stability, and mechanical reliability by using high-precision optical substrates and low-absorption dielectric film systems.
작동 원리 및 구조
그리고 PBS cube consists of two right-angled prisms plated with a multi-layer dielectric polarized spectroscopic film on the glued interface. When light is at perpendicular incidence:
- P-polarized light transmits almost completely.
- S-polarized light is reflected 90°.
This principle, based on polarization-selective reflection, enables efficient light spectroscopy and energy distribution. IBS layers can maintain low absorption and high stability at high power conditions. The cube structure can effectively avoid the optical axis offset and ensure the stability of the system during long-term operation.
소재 및 제조
- 기본 재료: 용융 실리카 / BK7 / CaF₂
- 코팅 방법: Ion beam sputtering (IBS) or electron beam evaporation
- 평탄도: λ/10 @ 632.8nm
- 병렬 처리: ≤3″
- 효과적인 구경: ≥90%
- Size range: 5mm–50mm, can be customized
사용자 지정 옵션
- 파장 사용자 지정: Supports 355nm–1550nm range
- Size can be customized: From 5mm to 50mm on the side
- 구조적 형태: Cube, planar, or wedge-shaped polarized beamsplitter
- Material used: 용융 실리카, BK7, CaF₂, ZnSe 등.
- Coating Solution: 단일 파장 또는 다중 대역 편광 필름
- 기계적 호환성: Optional frame, threaded or flush mounting interface
애플리케이션
- High-power laser processing system
- Laser resonator cavity and power monitoring module
- 광통신 편광 제어 장치
- Spectroscopic and interferometric systems
- Polarization spectroscopy module for scientific research and experiments
디자인 고려 사항
- 파장 매칭: The coating should correspond strictly to the operating wavelength of the system
- Angle of Incidence Control: Usually 0°; deviations may affect spectroscopic performance
- 편광 의존성: Polarization-sensitive systems need an explicit choice of the polarizing beam splitter cube type
- 코팅 내구성: IBS coatings are recommended for high-power applications
- 열 안정성: The material requires a low coefficient of thermal expansion
- Surface Cleanliness: Scattering and absorption damage due to contaminants or scratches
표준 매개변수
항목 | 매개변수 범위/표준값 |
작동 파장 | 532nm / 633nm / 780nm / 808nm / 1064nm / 1550nm |
편광 분리 | P 빛 투과율 >98%, S 빛 반사율 >99.5% |
입사각 | 0° (vertical incidence) |
재료 | 용융 실리카 / BK7 / CaF₂ |
코팅 유형 | 다층 유전체 편광 필름 |
유효 구경 | ≥90% |
두께 범위 | 3mm–20mm |
품질 검사 및 테스트
- Optical surface shape inspection: Interferometer measurement with an accuracy of λ/20
- 병렬 처리 감지: Angle interferometer or autocollimator measurement
- 코팅 균일성 검사: Spectrophotometer measurement, uniformity of film thickness ≤ ±0.5%
- 레이저 손상 임계값 테스트: ISO 21254, 10ns pulse, 1064nm
- 표면 품질 검사:20-10 scratch/dent grade per MIL-PRF-13830B
All the PBS cubes pass interference-level surface shape detection and ISO laser damage testing to ensure a long-term stable operation with high reliability in high-power laser systems.
