기술 자료

엔지니어링 기술 자료

레이저 광원 선정의 배경이 되는 물리, 절충, 고장 유형을 설계를 확정해야 하는 사람을 위해 썼습니다.

선정 가이드

데이터시트에서 둘 다 타당해 보이는 선택지 사이에서 결정하기.

905 nm vs 1535 nm vs 1550 nm: choosing a wavelength for ranging and LiDAR

The wavelength decision sets your detector, your eye-safety class, your maximum usable energy and your weather performance. Here is how the three bands actually compare for ranging work.

5 분 소요2026-10-07 Selection guide

How to choose a 905 nm pulsed laser diode: from range target to part number

A repeatable procedure for turning a range requirement into pulse energy, pulse energy into peak power and pulse width, and peak power into the smallest package that survives your duty cycle.

6 분 소요2026-10-07 Selection guide

Peak power, pulse width and duty cycle: the three numbers that define a pulsed laser diode

Peak power sells the part, pulse width sets the resolution, and duty cycle decides whether it survives. Getting the relationship wrong is the most common way a pulsed laser design fails.

4 분 소요2026-10-07 Selection guide

VCSEL vs edge-emitting laser: choosing a source for 3D sensing and LiDAR

Edge emitters win on peak power and range, VCSELs win on beam shape, duty cycle and cost. The comparison that matters is not watts - it is pulse energy, and the two technologies reach it in completely different ways.

5 분 소요2026-10-07

수광 소자

수신단. 링크 마진의 대부분이 여기서 얻어지거나 잃습니다.

Detectors

Choosing the receive side: avalanche photodiodes vs PIN photodiodes

Most of a ranging link's margin is recovered at the receiver, not the transmitter. Here is when an APD earns its 10x price, how gain and noise trade off, and what the specification numbers actually mean.

4 분 소요2026-10-07

광학

다이에서 목표물까지 빔을 보내기.

Optics

Fast-axis collimation and fibre coupling: getting the beam from the die to the target

An edge emitter's 25 degree fast axis wastes most of its energy on empty sky. Here is what a fast-axis collimator actually recovers, why it is a precondition for fibre coupling, and when you should not use one.

5 분 소요2026-10-07 Optics

Visible and RGB laser illumination: brightness, white balance and speckle

A visible source is not a 905 nm part with a shorter wavelength. The photopic curve decides which colour owns the power budget, etendue decides how bright the spot can be, speckle decides how uniform it looks - and the eye's aversion response changes the safety arithmetic, but less than most people assume.

9 분 소요2026-10-07

안전

규격이 요구하는 것과 그것이 에너지 예산에 의미하는 바.

Safety

Laser safety classes for ranging products: how the eye-safety limit overrides your energy budget

The energy budget is an optical calculation; whether you are allowed to emit that energy is a regulatory one. Here is what determines the limit, why the component is never the product, and how to design so the limit does not force you to 1535 nm.

6 분 소요2026-10-07

물리

모든 레이저 거리 측정 설계를 제약하는 관계식.

Physics

The laser range equation: how much pulse energy does a ranging link actually need?

Before you choose a diode, work out the energy budget. This derives the range equation for an extended target, calibrates it against products with known real-world performance, and gives you a table you can design from.

5 분 소요2026-10-07

전자

레이저 다이오드를 파괴하지 않고 구동하기.

Electronics

Driving a 905 nm pulsed laser diode: current, edge rates and what actually kills diodes

A pulsed laser diode is only as good as the pulse it is given. Here is what the driver's rise time, loop inductance, compliance voltage and duty cycle do to pulse energy - and the failure modes that destroy diodes in the first week.

6 분 소요2026-10-07