HL6504FM - Hitachi Semiconductor

HL6504FM

Visible High Power Laser Diode for DVD-RAM

ADE-208-825A (Z)

2nd Edition

Dec. 2000

Description

The HL6504FM is a 0.66 µm band AlGalnP laser diode (LD) with a multi-quantum well (MQW) structure.

It is suitable as a light source for large capacity optical disc memories, such as DVD-RAM, and various

other types of optical equipment.

Hermetic sealing of the small package (φ 5.6 mm) assures high reliability.

Application

• Optical disc memories

• Optical equipment

Features

• High output power : 50 mW (CW)

• Visible light output : λp = 664 nm Typ

• Small package : φ 5.6 mm

• Low astigmatism : 5 µm Typ (PO = 5 mW)

Internal CircuitPackage Type

• HL6504FM: FM

HL6504FM

Absolute Maximum Ratings (TC = 25°C)

Item Symbol Value Unit

Optical output power PO50 mW

Pulse optical output power PO(pulse) 70 * mW

Laser diode reverse voltage VR(LD) 2V

Operating temperature Topr −10 to +60 °C

Storage temperature Tstg −40 to +85 °C

Note: Pulse condition : Pulse width = 100 ns, duty = 50%

Optical and Electrical Characteristics (TC = 25°C)

Items Symbol Min Typ Max Unit Test Conditions

Optical output power PO50 — — mW Kink free *

Pulse optical output power PO(pulse) 70 — — mW Kink free *

Threshold current Ith 30 45 60 mA —

Operating current Iop — 115 135 mA PO = 50 mW

Operating voltage VOP 2.1 2.6 3.0 V PO = 50 mW

Beam divergence

parallel to the junction θ// 7 8.5 11 deg. PO = 50 mW

Beam divergence

parpendicular to the junction θ⊥ 18 21 26 deg. PO = 50 mW

Asitgmatism AS—5 —µmP

O = 5 mW, NA = 0.55

Lasing wavelength λp 655 664 667 nm PO = 50 mW

Note: Kink free is confirmed at the temperature of 25°C.

HL6504FM

Typical Characteristic Curves

0 2001601208040

Optical output power, PO (mW)

Forward current, IF (mA)

Optical Output Power vs. Forward Current

Slope efficiency, ηS (mW/mA)

Case temperature, TC (°C)

Slope Efficiency vs. Case Temperature

1.0

0.8

0.6

0.4

0.2

00 1020304050607080

TC = 60°C

TC = 25°C

TC = 0°C

Threshold current, Ith (mA)

Case temperature, TC (°C)

Threshold Current vs. Case Temperature

80706050403020100

100

0 2001601208040

Optical output power, PO (mW)

Forward current, IF (mA)

Pulse Optical Output Power vs. Forward Current

TC = 60°C

TC = 25°C

TC = 0°C

TC = 25°C

pw = 100 ns

duty = 50%

HL6504FM

Typical Characteristic Curves (cont)

Lasing Wavelength, λp (nm)

Case temperature, TC (°C)

Wavelength vs. Case Temperature

655 665660

Relative intensity

Wavelength, λp (nm)

Lasing Spectrum

TC = 25°C

0 1020304050607080

675

670

665

660

655

650

PO = 50 mW

PO = 35 mW

PO = 10 mW

PO = 5 mW

Relative intensity

Angle, θ (deg.)

Far Field Pattern

−40 −100 102030−20−30 40

1.0

0.8

0.6

0.4

0.2

PO = 50 mW

TC = 25°C

Astigmatism, AS (µm)

Optical output power, PO (mW)

Astigmatism vs. Optical Output Power

05040302010

TC = 25°C

NA = 0.55

Perpendicular

Parallel

HL6504FM

Typical Characteristic Curves (cont)

Gain (dB)

Frequency (Hz)

Frequency Response

1M 100M 3G10M

3 dB/div

1G 01

100

Survival rate (%)

Applied voltage (kV)

Electrostatic Destruction (MIL standard)

Forward

N = 5 pcs

∆Iop ≤ 10%

PO = 3 mW

HL6504FM

Package Dimensions

Hitachi Code

JEDEC

EIAJ

Mass

(reference value)

LD/FM

—

0.3 g

Unit: mm

5.6 +0

–0.025

1.0 ± 0.1

(0.4)

(90°)

1.6 ± 0.2

0.4 +0.1

–0

φ4.1 ± 0.3

3.55 ± 0.1

0.25

Glass

1.27

3 – 0.45 ± 0.1

6.5 ± 1.0

1.2 ± 0.1 2.3 ± 0.2

123

2.0 ± 0.2

Emitting Point

HL6504FM

Cautions

1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,

Hitachi bears no responsibility for problems that may arise with third party’s rights, including

intellectual property rights, in connection with use of the information contained in this document.

2. Products and product specifications may be subject to change without notice. Confirm that you have

received the latest product standards or specifications before final design, purchase or use.

3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,

contact Hitachi’s sales office before using the product in an application that demands especially high

quality and reliability or where its failure or malfunction may directly threaten human life or cause risk

of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,

traffic, safety equipment or medical equipment for life support.

4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly

for maximum rating, operating supply voltage range, heat radiation characteristics, installation

conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used

beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable

failure rates or failure modes in semiconductor devices and employ systemic measures such as fail-

safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other

consequential damage due to operation of the Hitachi product.

5. This product is not designed to be radiation resistant.

6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without

written approval from Hitachi.

7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor

products.

1. The laser light is harmful to human body especially to eye no matter what directly or indirectly. The

laser beam shall be observed or adjusted through infrared camera or equivalent.

HL6504FM

Hitachi, Ltd.

Semiconductor & Integrated Circuits.

Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan

Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109

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URL NorthAmerica : http://semiconductor.hitachi.com/

Europe : http://www.hitachi-eu.com/hel/ecg

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Japan : http://www.hitachi.co.jp/Sicd/indx.htm

Hitachi Asia Ltd.

(Taipei Branch Office)

4/F, No. 167, Tun Hwa North Road,

Hung-Kuo Building,

Taipei (105), Taiwan

Tel : <886>-(2)-2718-3666

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Telex : 23222 HAS-TP

URL : http://www.hitachi.com.tw

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For further information write to:

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