<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-08-18</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001056794</issuerCik>
        <issuerName>AVANEX CORP</issuerName>
        <issuerTradingSymbol>AVNX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001237685</rptOwnerCik>
            <rptOwnerName>BARBAROSSA GIOVANNI</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AVANEX CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>40919 ENCYCLOPEDIA CIRCLE</rptOwnerStreet2>
            <rptOwnerCity>FREMONT</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94538</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Interim Chief Executive Office</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-08-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>42000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.001</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>49265</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                    <footnoteId id="F6"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Includes 42,000 unvested Restricted Stock Units granted on August 18, 2008 that will vest according to the following schedule: 50% of the Restricted Stock Units awarded shall vest on each anniversary of August 18, 2008, such that 100% of the Restricted Stock Units will be fully vested on August 18, 2010, subject to the Reporting Person continuing to be a Service Provider through such date.</footnote>
        <footnote id="F2">Includes 952 unvested Restricted Stock Units granted on December 20, 2005 that are vesting according to the following schedule: approximately 56 of the Restricted Stock Units shall vest each month hereafter, such that 100% of the Restricted Stock Units will be fully vested on December 20, 2009, subject to the Reporting Person continuing to be a Service Provider through such date. This grant was previously reported as covering 14,167 unvested Restricted Stock Units and has been adjusted to reflect the 15-for-1 reverse stock split that the Company effected following the close of market on August 12, 2008.</footnote>
        <footnote id="F3">Includes 546 unvested Restricted Stock Units granted on October 9, 2006 that are vesting according to the following schedule: approximately 21 of the Restricted Stock Units shall vest each month hereafter, such that 100% of the Restricted Stock Units will be fully vested on October 9, 2010, subject to the Reporting Person continuing to be a Service Provider through such date. This grant was previously reported as covering 8,438 unvested Restricted Stock Units and has been adjusted to reflect the 15-for-1 reverse stock split that the Company effected following the close of market on August 12, 2008.</footnote>
        <footnote id="F4">Includes 450 unvested Restricted Stock Units granted on March 21, 2007 that are vesting according to the following schedule: approximately 15 of the Restricted Stock Units awarded shall vest each month hereafter, such that 100% of the Restricted Stock Units will be fully vested on February 15, 2011, subject to the Reporting Person continuing to be a Service Provider through such date. This grant was previously reported as covering 6,920 unvested Restricted Stock Units and has been adjusted to reflect the 15-for-1 reverse stock split that the Company effected following the close of market on August 12, 2008.</footnote>
        <footnote id="F5">Includes 2,000 unvested Restricted Stock Units granted on October 21, 2007 that will vest according to the following schedule: 25% of the Restricted Stock Units awarded shall vest on each anniversary of October 21, 2007, such that 100% of the Restricted Stock Units will be fully vested on October 21, 2011, subject to the Reporting Person continuing to be a Service Provider through such date. This grant was previously reported as covering 30,000 unvested Restricted Stock Units and has been adjusted to reflect the 15-for-1 reverse stock split that the Company effected following the close of market on August 12, 2008.</footnote>
        <footnote id="F6">The total number of shares reported as beneficially owned has been adjusted to reflect the 15-for-1 reverse stock split that the Company effected following the close of market on August 12, 2008.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Richard C. Blake, Attorney-in-Fact for Giovanni Barbarossa</signatureName>
        <signatureDate>2008-08-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
